High-Speed Fuse Product Catalog Datasheet by Littelfuse Inc.
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POWR-SPEED® PRODUCTS HIGH-SPEED FUSES FUSE BLOCKS & HOLDERS
SPECIAL PURPOSE FUSES
MICROSWITCHES
HIGH-SPEED SEMICONDUCTOR PRODUCTS CATALOG
NEW PSR Series High-Speed Fuses
Now available in bladed models
New DIN and bolted blade style terminations
meet a broader range of applications
1 of 52
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INTRODUCTION
POWR-SPEED ® High-Speed Semiconductor Fuses ..................................... 2
POWR-SPEED FUSES
High-Speed Square-Body Fuses
PSR Series Flush End ..................................................................................... 4
PSR Series Bolted Blade ................................................................................. 8
PSR Series DIN Blade ................................................................................... 12
High-Speed Round-Body Fuses
L75QS Series ................................................................................................. 16
L70QS Series ................................................................................................. 19
L50QS Series ................................................................................................. 22
L70S Series ................................................................................................... 26
L50S Series ................................................................................................... 29
L15S Series ................................................................................................... 32
L25S Series ................................................................................................... 36
L60S / KLC Series ......................................................................................... 40
POWR-SPEED FUSE ACCESSORIES
LSCR Series High-Speed Fuse Blocks .......................................................... 44
MS Series High-Speed Microswitches ........................................................ 47
SPECIAL PURPOSE FUSES
Telecommunications
L17T Series Telecom Power Fuses ............................................................... 48
TLS Series Telecom Power Fuses ................................................................. 49
CROSS REFERENCE GUIDE
POWR-SPEED Fuse Cross Reference ........................................................... 52
High-Speed Semiconductor Fuses Catalog
TABLE OF CONTENTS
High-Speed
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Fiberglass
Melamine Body
100% Pure
Silver Elements
Silver-Plated Copper
Alloy End Bells
Stone-Sand Filled
*not shown
Drill Pins
High-Speed Semiconductor Fuses
Introducing
POWR-SPEED®
These certified high-speed fuses are optimized for performance and efficiency to better protect
your critical power semiconductors against short circuits. How is POWR-SPEED better? Backed
by over 40 years of experience, Littelfuse engineered the POWR-SPEED line to help you
protect critical power electronics from overcurrents that may cause damage to your equipment.
High-speed fuses are reliable, very fast-acting products that can reduce the amount of short
circuit current and improve the life of your power semiconductor devices.
The POWR-SPEED high-speed fuses are easy to retrofit as drop-in replacements where similar
products are currently being used. Custom designs are available if you need a specific fuse for
your application. Call us. Our engineers are eager to partner with you before, during, and long
after the design process to meet your specific needs.
OPTIMIZED FOR PERFORMANCE AND EFFICIENCY
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Copper Alloy
End Plates
Silver-Plated Copper
Alloy End Bell
Alumina High-Grade
Ceramic Body
100% Pure Silver
Element Bridges
Silver-Copper
Through-Lay Elements
Stone Sand
High-Speed Semiconductor Fuses
Features Benefits
Extremely Current Limiting Reduces peak let-through current and let-through energy (I2t) to protect semiconductor components and devices
Low Watt Loss Saves energy wasted during operation
*Resilient Labeling Laser etched resistance values eliminate labels that erode over time
**All Ratings Published on Label Eliminates confusion when replacing and inspecting
Universal Blade Mounting Quick and easy field replacement
Optimized Design Better energy efficiency and improved protection levels
**Flush End Terminals Flexibility to mount directly to bus-bar
RoHS and REACH Compliant Environment friendly, offering greater acceptance in global power electronics
Optimized Performance Balanced speed of operation, energy efficiency, and longevity
**Silicone Sealant Prevents sand leakage and improves reliability
**High DC Interrupting Rating Achieves an interrupting rating of 150 kA for applications that require more power
*Round-body style only
**Square-body style only
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Littelfuse.com/psr
© 2019 Littelfuse, Inc.
Rev: 073119
1 of 21
POWR-SPEED® Fuse
PSR SERIES HIGH-SPEED SQUARE BODY
Specifi cations
Voltage Range Ac: 550 V–1300 V
Dc: 500 V–1000 V
Amperage Range 40 A–2000 A
Interrupting Range Ac: 100 kA–200 kA
Dc: 150 kA
Time Constant 10 ms
Microswitch Yes
Mounting Flush-end style
Material Body: ceramic
Contacts: plated brass
Approvals UL 248-13 Recognized (File: E71611)
cURus (File: E71611)
IEC 60269-4 (class aR)
CCC
Environmental RoHS Compliant, REACH
Operating Temperature -55 °C to +125 °C
Storage Temperature Up to +35 °C with relative humidity
<65 %
Country of Origin Mexico
Description
Littelfuse PSR series high-speed square body fuses are
specially designed for protection of power semiconductor
devices such as diodes, triacs, IGBTs, SCRs, MOSFETs,
and other solid state devices that are typically designed
into power conversion and power conditioning equipment.
Variable frequency drives, inverters, UPS, rectifiers, and
soft-starters are examples of typical equipment designed
with sensitive power semiconductor devices that cannot
withstand any line surge or overcurrent conditions and
require high-speed protection.
Littelfuse POWR-SPEED PSR series products offer
optimized circuit protection at the extremely fast speed
required to protect modern day power conversion devices.
Such products are commonly found in numerous applications
including pulp and paper industries, cranes and heavy-lifting
equipment, processing industries, wastewater treatment
plants, and various large factories and MRO facilities.
Features/Benefi ts
Best in class dc performance
Extremely current limiting
Superior cycling capability
Global certifi cation cURus, CCC, IEC
Direct bus-bar mount design
Visual and optional microswitch fuse blown indication
Low watt-loss design
Compliance with US and Canadian requirements
Class aR performance according to IEC60269-4
Applications
Power conversion devices (UPS, inverter, rectifi ers, drives)
Dc systems (dc common bus, dc injection braking)
Battery protection application (energy storage systems)
Electric vehicle charging stations
Heaters and power supplies
Semiconductor Fuses • Flush End • 40 A–2000 A S
SERIES CASE
SIZE TERMINATION AMPERAGE CATALOG
NUMBER
ORDERING
PART NUMBER
PSR 030 FL 0550 PSR030FL0550 PSR030FL0550Z
Ordering Part Number
Catalog Number
PSR 030 FL 0550 Z
Termination
FL - Flush end metric thread
FS - Flush end inches thread
Case Size
30, 31, 32, 33, 70, 71, 72,73
Amperage
Series
Packing Quantity
Z = (2–3 pcs/box)
Recommended Accessories
Microswitch: MS3H1000C (case size 30 to 33)
MS7H1500C (case size 70 to 73)
Web Resources
Download technical documents: Littelfuse.com/psr
Note: high-speed fuses are designed for fi xed installations. They are
not intended for use in moving vehicle applications.
POWR-SPEED® Fuses
Littelfuse.com/powr-speed
© 2019 Littelfuse, Inc.
4 of 52
PSR SERIES HIGH-SPEED SQUARE BODY
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Rev: 073119
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POWR-SPEED® Fuse
PSR SERIES HIGH-SPEED SQUARE BODY
Electrical Characteristics
CASE
SIZE
CATALOG NUMBER
AMPERAGE
RATING (A)
VOLTAGE
RATING (V)
INTERRUPTING
RATING MELTING
(PRE-ARC)
I2T (A2s)
TOTAL
CLEARING
I2T (A2s) AT
RATED VOLTAGE
WATT LOSS
AT 100 %
RATED
CURRENT (W)
AGENCY
CERTIFICATION
FLUSH END
METRIC THREAD
FLUSH END
INCHES THREAD
AC DC AC DC cURus CCC
IEC UL AC DC
30
PSR030FL0040 PSR030FS0040 40 690 700 600 200 kA 150 kA 76 280 260 12 • •
PSR030FL0050 PSR030FS0050 50 690 700 600 200 kA 150 kA 110 598 384 15 • •
PSR030FL0063 PSR030FS0063 63 690 700 600 200 kA 150 kA 176 1023 640 20 • •
PSR030FL0080 PSR030FS0080 80 690 700 600 200 kA 150 kA 304 1728 1252 24 • •
PSR030FL0100 PSR030FS0100 100 690 700 600 200 kA 150 kA 437 2835 1575 27 • •
PSR030FL0125 PSR030FS0125 125 690 700 600 200 kA 150 kA 707 4684 2783 36 • •
PSR030FL0160 PSR030FS0160 160 690 700 600 200 kA 150 kA 1359 9114 5507 39 • •
PSR030FL0200 PSR030FS0200 200 690 700 600 200 kA 150 kA 3012 15169 14700 39 • •
PSR030FL0250 PSR030FS0250 250 690 700 600 200 kA 150 kA 4668 29952 20833 50 • •
PSR030FL0315 PSR030FS0315 315 690 700 600 200 kA 150 kA 7131 61830 31600 61 • •
PSR030FL0350 PSR030FS0350 350 690 700 600 200 kA 150 kA 12007 85320 49273 62 • •
PSR030FL0400 PSR030FS0400 400 690 700 600 200 kA 150 kA 16209 114750 63367 75 • •
PSR030FL0450 PSR030FS0450 450 690 700 600 200 kA 150 kA 23133 160110 93533 75 • •
PSR030FL0500 PSR030FS0500 500 690 700 600 200 kA 150 kA 31429 225180 137333 80 • •
PSR030FL0550 PSR030FS0550 550 690 700 600 200 kA 150 kA 44323 268920 145400 78 • •
31
PSR031FL0200 PSR031FS0200 200 690 700 600 200 kA 150 kA 1965 17334 16188 49 • •
PSR031FL0250 PSR031FS0250 250 690 700 600 200 kA 150 kA 3789 35343 21080 52 • •
PSR031FL0315 PSR031FS0315 315 690 700 600 200 kA 150 kA 6862 59130 30694 61 • •
PSR031FL0350 PSR031FS0350 350 690 700 600 200 kA 150 kA 9523 76140 40996 63 • •
PSR031FL0400 PSR031FS0400 400 690 700 600 200 kA 150 kA 14770 124335 64359 63 • •
PSR031FL0450 PSR031FS0450 450 690 700 600 200 kA 150 kA 22457 178200 97444 68 • •
PSR031FL0500 PSR031FS0500 500 690 700 600 200 kA 150 kA 29751 251505 125935 74 • •
PSR031FL0550 PSR031FS0550 550 690 700 600 200 kA 150 kA 42056 289170 171845 79 • •
PSR031FL0630 PSR031FS0630 630 690 700 600 200 kA 150 kA 73513 507465 276315 86 • •
PSR031FL0700 PSR031FS0700 700 690 700 600 200 kA 150 kA 98187 601425 337260 89 • •
PSR031FL0800 PSR031FS0800 800 690 700 600 200 kA 150 kA 137208 848880 502800 107 • •
32
PSR032FL0400 PSR032FS0400 400 690 700 600 200 kA 150 kA 11104 79650 44533 82 • •
PSR032FL0450 PSR032FS0450 450 690 700 600 200 kA 150 kA 15535 116100 65463 88 • •
PSR032FL0500 PSR032FS0500 500 690 700 600 200 kA 150 kA 21573 161460 88277 94 • •
PSR032FL0550 PSR032FS0550 550 690 700 600 200 kA 150 kA 26327 177660 107960 104 • •
PSR032FL0630 PSR032FS0630 630 690 700 600 200 kA 150 kA 34790 234900 156963 110 • •
PSR032FL0700 PSR032FS0700 700 690 700 600 200 kA 150 kA 51191 291870 209287 117 • •
PSR032FL0800 PSR032FS0800 800 690 700 600 200 kA 150 kA 60125 472770 249000 145 • •
PSR032FL0900 PSR032FS0900 900 690 700 600 200 kA 150 kA 107785 764100 404000 145 • •
PSR032FL1000 PSR032FS1000 1000 690 700 600 200 kA 150 kA 190102 933120 672333 146 • •
PSR032FL1100 PSR032FS1100 1100 690 700 600 200 kA 150 k A 225379 1247400 744000 149 • •
33
PSR033FL0450 PSR033FS0450 450 690 700 600 200 kA 150 kA 13600 106380 58947 99 • •
PSR033FL0500 PSR033FS0500 500 690 700 600 200 kA 150 kA 16434 140400 77846 107 • •
PSR033FL0550 PSR033FS0550 550 690 700 600 200 kA 150 kA 23314 187650 100461 108 • •
PSR033FL0630 PSR033FS0630 630 690 700 600 200 kA 150 kA 38727 285930 142437 113 • •
PSR033FL0700 PSR033FS0700 700 690 700 600 200 kA 150 kA 56763 392580 209863 113 • •
PSR033FL0800 PSR033FS0800 800 690 700 600 200 kA 150 kA 84691 575505 348500 120 • •
PSR033FL0900 PSR033FS0900 900 690 700 600 200 kA 150 kA 122619 740340 451177 122 • •
PSR033FL1000 PSR033FS1000 1000 690 700 600 200 kA 150 kA 222350 1170450 787750 124 • •
PSR033FL1100 PSR033FS1100 1100 690 700 600 200 kA 150 kA 310824 1568700 821400 127 • •
PSR033FL1250 PSR033FS1250 1250 690 700 600 200 kA 150 kA 476902 2403000 1674333 131 • •
PSR033FL1400 PSR033FS1400 1400 690 700 500 200 kA 150 kA 583552 2920050 1979750 144 • •
PSR033FL1500 PSR033FS1500 1500 600 650 500 200 kA 150 kA 674538 2433200 1996733 163 • •
PSR033FL1600 PSR033FS1600 1600 600 650 500 200 kA 150 kA 779948 2942800 2301633 182 • •
PSR033FL1800 PSR033FS1800 1800 600 650 500 200 kA 150 kA 952196 3785040 2724180 224 • •
PSR033FL2000 PSR033FS2000 2000 550 600 500 200 kA 150 k A 1234315 4131600 3755180 222 • •
Littelfuse.com/psr
© 2019 Littelfuse, Inc.
Rev: 073119
1 of 21
POWR-SPEED® Fuse
PSR SERIES HIGH-SPEED SQUARE BODY
Specifi cations
Voltage Range Ac: 550 V–1300 V
Dc: 500 V–1000 V
Amperage Range 40 A–2000 A
Interrupting Range Ac: 100 kA–200 kA
Dc: 150 kA
Time Constant 10 ms
Microswitch Yes
Mounting Flush-end style
Material Body: ceramic
Contacts: plated brass
Approvals UL 248-13 Recognized (File: E71611)
cURus (File: E71611)
IEC 60269-4 (class aR)
CCC
Environmental RoHS Compliant, REACH
Operating Temperature -55 °C to +125 °C
Storage Temperature Up to +35 °C with relative humidity
<65 %
Country of Origin Mexico
Description
Littelfuse PSR series high-speed square body fuses are
specially designed for protection of power semiconductor
devices such as diodes, triacs, IGBTs, SCRs, MOSFETs,
and other solid state devices that are typically designed
into power conversion and power conditioning equipment.
Variable frequency drives, inverters, UPS, rectifiers, and
soft-starters are examples of typical equipment designed
with sensitive power semiconductor devices that cannot
withstand any line surge or overcurrent conditions and
require high-speed protection.
Littelfuse POWR-SPEED PSR series products offer
optimized circuit protection at the extremely fast speed
required to protect modern day power conversion devices.
Such products are commonly found in numerous applications
including pulp and paper industries, cranes and heavy-lifting
equipment, processing industries, wastewater treatment
plants, and various large factories and MRO facilities.
Features/Benefi ts
Best in class dc performance
Extremely current limiting
Superior cycling capability
Global certifi cation cURus, CCC, IEC
Direct bus-bar mount design
Visual and optional microswitch fuse blown indication
Low watt-loss design
Compliance with US and Canadian requirements
Class aR performance according to IEC60269-4
Applications
Power conversion devices (UPS, inverter, rectifi ers, drives)
Dc systems (dc common bus, dc injection braking)
Battery protection application (energy storage systems)
Electric vehicle charging stations
Heaters and power supplies
Semiconductor Fuses • Flush End • 40 A–2000 A
S
SERIES CASE
SIZE TERMINATION AMPERAGE CATALOG
NUMBER
ORDERING
PART NUMBER
PSR 030 FL 0550 PSR030FL0550 PSR030FL0550Z
Ordering Part Number
Catalog Number
PSR 030 FL 0550 Z
Termination
FL - Flush end metric thread
FS - Flush end inches thread
Case Size
30, 31, 32, 33, 70, 71, 72,73
Amperage
Series
Packing Quantity
Z = (2–3 pcs/box)
Recommended Accessories
Microswitch: MS3H1000C (case size 30 to 33)
MS7H1500C (case size 70 to 73)
Web Resources
Download technical documents: Littelfuse.com/psr
Note: high-speed fuses are designed for fi xed installations. They are
not intended for use in moving vehicle applications.
POWR-SPEED® Fuses
Littelfuse.com/powr-speed
© 2019 Littelfuse, Inc.
5 of 52
PSR SERIES HIGH-SPEED SQUARE BODY
tleltuse‘
u \ Am,
Littelfuse.com/psr
© 2019 Littelfuse, Inc.
Rev: 073119
3 of 21
POWR-SPEED® Fuse
PSR SERIES HIGH-SPEED SQUARE BODY
CASE
SIZE
CATALOG NUMBER
AMPERAGE
RATING (A)
VOLTAGE
RATING (V)
INTERRUPTING
RATING MELTING
(PRE-ARC)
I2T (A2s)
TOTAL
CLEARING
I2T (A2s) AT
RATED VOLTAGE
WATT LOSS
AT 100 %
RATED
CURRENT (W)
AGENCY
CERTIFICATION
FLUSH END
METRIC THREAD
FLUSH END
INCHES THREAD
AC DC AC DC cURus CCC
IEC UL AC DC
70
PSR070FL0050 PSR070FS0050 50 1250 1300 1000 100 kA 150 kA 177 2050 400 21 • •
PSR070FL0063 PSR070FS0063 63 1250 1300 1000 100 kA 150 kA 273 3399 900 23 • •
PSR070FL0080 PSR070FS0080 80 1250 1300 1000 100 kA 150 kA 583 6732 2200 24 • •
PSR070FL0100 PSR070FS0100 100 1250 1300 1000 100 kA 150 kA 974 10996 3750 29 • •
PSR070FL0125 PSR070FS0125 125 1250 1300 1000 100 kA 150 kA 1352 13011 5150 43 • •
PSR070FL0160 PSR070FS0160 160 1250 1300 1000 100 kA 150 kA 2377 25662 8950 51 • •
PSR070FL0200 PSR070FS0200 200 1250 1300 1000 100 kA 150 kA 4177 39087 17267 61 • •
PSR070FL0250 PSR070FS0250 250 1250 1300 1000 100 kA 150 kA 8629 89790 36750 71 • •
PSR070FL0280 PSR070FS0280 280 1250 1300 1000 100 kA 150 kA 11844 113201 46750 71 • •
PSR070FL0315 PSR070FS0315 315 1250 1300 1000 100 kA 150 kA 18162 142051 66833 69 • •
71
PSR071FL0160 PSR071FS0160 160 1250 1300 1000 100 kA 150 kA 2756 24600 8800 42 • •
PSR071FL0200 PSR071FS0200 200 1250 1300 1000 100 kA 150 kA 4918 50307 19050 52 • •
PSR071FL0250 PSR071FS0250 250 1250 1300 1000 100 kA 150 kA 10592 104427 43100 54 • •
PSR071FL0280 PSR071FS0280 280 1250 1300 1000 100 kA 150 kA 13763 131897 54150 58 •
PSR071FL0315 PSR071FS0315 315 1250 1300 1000 100 kA 150 kA 20882 200244 67450 60 • •
PSR071FL0350 PSR071FS0350 350 1250 1300 1000 100 kA 150 kA 23301 225500 102500 71 • •
PSR071FL0400 PSR071FS0400 400 1250 1300 1000 100 kA 150 kA 43211 374986 185000 69 • •
PSR071FL0450 PSR071FS0450 450 1250 1300 1000 100 kA 150 kA 55915 452394 241333 88 • •
72
PSR072FL0250 PSR072FS0250 250 1250 1300 1000 100 kA 150 kA 7737 72789 28567 63 • •
PSR072FL0280 PSR072FS0280 280 1250 1300 1000 100 kA 150 kA 10915 124538 46897 62 • •
PSR072FL0315 PSR072FS0315 315 1250 1300 1000 100 kA 150 kA 16187 145140 58867 67 • •
PSR072FL0350 PSR072FS0350 350 1250 1300 1000 100 kA 150 kA 18727 160447 69633 80 • •
PSR072FL0400 PSR072FS0400 400 1250 1300 1000 100 kA 150 kA 27112 243540 108000 89 • •
PSR072FL0450 PSR072FS0450 450 1250 1300 1000 100 kA 150 kA 35927 406413 159133 107 • •
PSR072FL0500 PSR072FS0500 500 1250 1300 1000 100 kA 150 kA 50398 425375 216333 115 • •
PSR072FL0550 PSR072FS0550 550 1250 1300 1000 100 kA 150 kA 73858 539833 271333 115 • •
PSR072FL0630 PSR072FS0630 630 1250 1300 1000 100 kA 150 kA 126126 942180 436000 119 • •
73
PSR073FL0315 PSR073FS0315 315 1250 1300 1000 100 kA 150 kA 10245 106600 38650 88 • •
PSR073FL0350 PSR073FS0350 350 1250 1300 1000 100 kA 150 kA 13586 159627 57467 96 • •
PSR073FL0400 PSR073FS0400 400 1250 1300 1000 100 kA 150 kA 19797 211273 86800 124 • •
PSR073FL0450 PSR073FS0450 450 1250 1300 1000 100 kA 150 kA 29834 279073 114333 122 • •
PSR073FL0500 PSR073FS0500 500 1250 1300 1000 100 kA 150 kA 42751 416437 184500 121 • •
PSR073FL0550 PSR073FS0550 550 1250 1300 1000 100 kA 150 kA 55513 491713 224500 130 • •
PSR073FL0630 PSR073FS0630 630 1250 1300 1000 100 kA 150 kA 94649 804338 377500 136 • •
PSR073FL0700 PSR073FS0700 700 1250 1300 1000 100 kA 150 kA 158097 1170960 575667 135 • •
Electrical Characteristics (cont.)
POWR-SPEED® Fuses
Littelfuse.com/powr-speed
© 2019 Littelfuse, Inc.
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PSR SERIES HIGH-SPEED SQUARE BODY
% litleltuse'
u dur u
Littelfuse.com/psr
© 2019 Littelfuse, Inc.
Rev: 073119
3 of 21
POWR-SPEED® Fuse
PSR SERIES HIGH-SPEED SQUARE BODY
CASE
SIZE
CATALOG NUMBER
AMPERAGE
RATING (A)
VOLTAGE
RATING (V)
INTERRUPTING
RATING MELTING
(PRE-ARC)
I2T (A2s)
TOTAL
CLEARING
I2T (A2s) AT
RATED VOLTAGE
WATT LOSS
AT 100 %
RATED
CURRENT (W)
AGENCY
CERTIFICATION
FLUSH END
METRIC THREAD
FLUSH END
INCHES THREAD
AC DC AC DC cURus CCC
IEC UL AC DC
70
PSR070FL0050 PSR070FS0050 50 1250 1300 1000 100 kA 150 kA 177 2050 400 21 • •
PSR070FL0063 PSR070FS0063 63 1250 1300 1000 100 kA 150 kA 273 3399 900 23 • •
PSR070FL0080 PSR070FS0080 80 1250 1300 1000 100 kA 150 kA 583 6732 2200 24 • •
PSR070FL0100 PSR070FS0100 100 1250 1300 1000 100 kA 150 kA 974 10996 3750 29 • •
PSR070FL0125 PSR070FS0125 125 1250 1300 1000 100 kA 150 kA 1352 13011 5150 43 • •
PSR070FL0160 PSR070FS0160 160 1250 1300 1000 100 kA 150 kA 2377 25662 8950 51 • •
PSR070FL0200 PSR070FS0200 200 1250 1300 1000 100 kA 150 kA 4177 39087 17267 61 • •
PSR070FL0250 PSR070FS0250 250 1250 1300 1000 100 kA 150 kA 8629 89790 36750 71 • •
PSR070FL0280 PSR070FS0280 280 1250 1300 1000 100 kA 150 kA 11844 113201 46750 71 • •
PSR070FL0315 PSR070FS0315 315 1250 1300 1000 100 kA 150 kA 18162 142051 66833 69 • •
71
PSR071FL0160 PSR071FS0160 160 1250 1300 1000 100 kA 150 kA 2756 24600 8800 42 • •
PSR071FL0200 PSR071FS0200 200 1250 1300 1000 100 kA 150 kA 4918 50307 19050 52 • •
PSR071FL0250 PSR071FS0250 250 1250 1300 1000 100 kA 150 kA 10592 104427 43100 54 • •
PSR071FL0280 PSR071FS0280 280 1250 1300 1000 100 kA 150 kA 13763 131897 54150 58 •
PSR071FL0315 PSR071FS0315 315 1250 1300 1000 100 kA 150 kA 20882 200244 67450 60 • •
PSR071FL0350 PSR071FS0350 350 1250 1300 1000 100 kA 150 kA 23301 225500 102500 71 • •
PSR071FL0400 PSR071FS0400 400 1250 1300 1000 100 kA 150 kA 43211 374986 185000 69 • •
PSR071FL0450 PSR071FS0450 450 1250 1300 1000 100 kA 150 kA 55915 452394 241333 88 • •
72
PSR072FL0250 PSR072FS0250 250 1250 1300 1000 100 kA 150 kA 7737 72789 28567 63 • •
PSR072FL0280 PSR072FS0280 280 1250 1300 1000 100 kA 150 kA 10915 124538 46897 62 • •
PSR072FL0315 PSR072FS0315 315 1250 1300 1000 100 kA 150 kA 16187 145140 58867 67 • •
PSR072FL0350 PSR072FS0350 350 1250 1300 1000 100 kA 150 kA 18727 160447 69633 80 • •
PSR072FL0400 PSR072FS0400 400 1250 1300 1000 100 kA 150 kA 27112 243540 108000 89 • •
PSR072FL0450 PSR072FS0450 450 1250 1300 1000 100 kA 150 kA 35927 406413 159133 107 • •
PSR072FL0500 PSR072FS0500 500 1250 1300 1000 100 kA 150 kA 50398 425375 216333 115 • •
PSR072FL0550 PSR072FS0550 550 1250 1300 1000 100 kA 150 kA 73858 539833 271333 115 • •
PSR072FL0630 PSR072FS0630 630 1250 1300 1000 100 kA 150 kA 126126 942180 436000 119 • •
73
PSR073FL0315 PSR073FS0315 315 1250 1300 1000 100 kA 150 kA 10245 106600 38650 88 • •
PSR073FL0350 PSR073FS0350 350 1250 1300 1000 100 kA 150 kA 13586 159627 57467 96 • •
PSR073FL0400 PSR073FS0400 400 1250 1300 1000 100 kA 150 kA 19797 211273 86800 124 • •
PSR073FL0450 PSR073FS0450 450 1250 1300 1000 100 kA 150 kA 29834 279073 114333 122 • •
PSR073FL0500 PSR073FS0500 500 1250 1300 1000 100 kA 150 kA 42751 416437 184500 121 • •
PSR073FL0550 PSR073FS0550 550 1250 1300 1000 100 kA 150 kA 55513 491713 224500 130 • •
PSR073FL0630 PSR073FS0630 630 1250 1300 1000 100 kA 150 kA 94649 804338 377500 136 • •
PSR073FL0700 PSR073FS0700 700 1250 1300 1000 100 kA 150 kA 158097 1170960 575667 135 • •
Electrical Characteristics (cont.)
Littelfuse.com/psr
© 2019 Littelfuse, Inc.
Rev: 073119
6 of 21
POWR-SPEED® Fuse
PSR SERIES HIGH-SPEED SQUARE BODY
Dimensions
DIMENSIONS IN MM (IN)
CASE
SIZE A B C D E F G FL METRIC
THREAD
FS INCHES
THREAD
RECOMMENDED
TORQUE
30 50.0 (1.97) 43.0 (1.69) 43.0 (1.69) 49.0 (1.93) 17.0 (0.67) 47.4 (1.86) 76.4 (3.01) M8 x 1.25 5/16”–18 UNC 2B 13–20 Nm
31 50.0 (1.97) 51.5 (2.03) 51.5 (2.03) 57.5 (2.26) 20.0 (0.8) 48.2 (1.90) 84.9 (3.34) M8 x 1.25 5/16”–18 UNC 2B 13–20 Nm
32 51.0 (2.01) 60.0 (2.36) 60.0 (2.36) 66.0 (2.60) 23.0 (0.91) 48.8 (1.92) 93.4 (3.68) M10 x 1.5 3/8”–16 UNC 2B 26–35 Nm
33 51.0 (2.01) 73.5 (2.89) 73.5 (2.89) 79.5 (3.13) 30.0 (1.18) 49.2 (1.94) 106.9 (4.21) M12 x 1.75 1/2”–13 UNC 2B 45–55 Nm
70 74.0 (2.91) 43.0 (1.69) 43.0 (1.69) 49.0 (1.93) 17.0 (0.67) 71.4 (2.81) 76.4 (3.01) M8 x 1.25 5/16”–18 UNC 2B 13–20 Nm
71 74.0 (2.91) 51.5 (2.03) 51.5 (2.03) 57.5 (2.26) 20.0 (0.79) 72.2 (2.84) 84.9 (3.34) M8 x 1.25 5/16”–18 UNC 2B 13–20 Nm
72 75.0 (2.95) 60.0 (2.36) 60.0 (2.36) 66.0 (2.60) 23.0 (0.91) 72.8 (2.87) 93.4 (3.68) M10 x 1.5 3/8”–16 UNC 2B 26–35 Nm
73 75.0 (2.95) 73.5 (2.89) 73.5 (2.89) 79.5 (3.13) 30.0 (1.18) 73.2 (2.88) 106.9 (4.21) M12 x 1.75 1/2”–13 UNC 2B 45–55 Nm
CHICAGO, ILLINOIS 60631
3RD ANGLE
PROJECTION
5PSR SERIES
Littelfuse
®REVISION
DRWG NO.
TITLE
C
DRW DATE
GRAMS/PIECE
FINISH GOOD WT
myork 1/30/2017
MATL SPEC FINISH
UNLESS OTHERWISE SPECIFIED, DIMENSIONS ARE IN MILLIMETERS, DIMENSIONS IN
BRACKETS [ ] ARE INCHES DIMENSIONING AND DO NOT INCLUDE PLATING. TOLERANCING
TO BE INTERPRETED IN ACCORDANCE WITH ANSI Y14.5M-1994
DENOTES CRITICAL CHARACTERISTICS.
DENOTES CPK DIMENSIONS, -MINIMUM CPK VALUE
DENOTES A CHARACTERISTIC THAT PROVIDES AN INDICATION
OF PROCESS PERFORMANCE. PROCEDURE FOR MEASUREMENT
AND TRACKING TO BE DEFINED IN
LITTELFUSE INSPECTION INSTRUCTIONS.
DENOTES CP DIMENSIONS, -MINIMUM CP VALUE
MUST BE WITHIN THE DIMENSIONAL LIMITATIONS
SHOWN ON DRAWING AND INITIALLY LOCATED TO
ALLOW FOR MAXIMUM TOOL LIFE.
CPK
CP
SHEET 1 OF 1
SCALE
PSR SERIES OUTLINE
NTS
REVISION
REV DATE DESCRIPTION
11/30/17 UNCONTROLLED DOCUMENT MRY
23/1/17 ADD THREAD DIMENSIONS MRY
33/2/17 UPDATE THREAD COLUMN HEADERS MRY
44/24/17 CHANGE 33 DIM A MRY
511/5/18 CHG DIM A, ADD SIZE 31, 70 & 73, ADD NEW VIEW MRY
E
C
BD
G
A
F
DIMENSIONS MM (IN)
CASE SIZE A B C D E F G FL METRIC THREAD FS INCHES THREAD RECOMMENDED
TORQUE
30 49.0-51.0
(1.93-2.01) 43.0 (1.69) 43.0 (1.69) 49.0 (1.93) 17.0 (0.67) 47.4 (1.86) 76.4 (3.01) M8x1.25 5/16"-18 UNC-2B 13-20 Nm
31 49.0-51.0
(1.93-2.01) 51.5 (2.03) 51.5 (2.03) 57.5 (2.26) 20.0 (0.80) 48.2 (1.90) 84.9 (3.34) M8x1.25 5/16"-18 UNC-2B 13-20 Nm
32 50.0-52.0
(1.97-2.05) 60.0 (2.36) 60.0 (2.36) 66.0 (2.60) 23.0 (0.91) 48.8 (1.92) 93.4 (3.68) M10x1.5 3/8"-16 UNC-2B 26-35 Nm
33 50.0-52.0
(1.97-2.05) 73.5 (2.89) 73.5 (2.89) 79.5 (3.13) 30.0 (1.18) 49.2 (1.94) 106.9 (4.21) M12x1.75 1/2"-13 UNC-2B 45-55 Nm
70 73.0-75.0
(2.87-2.95) 43.0 (1.69) 43.0 (1.69) 49.0 (1.93) 17.0 (0.70) 741.4 (2.81) 76.4 (3.01) M8x1.25 5/16"-18 UNC-2B 13-20 Nm
71 73.3-74.7
(2.89-2.94) 51.5 (2.03) 51.5 (2.03) 57.5 (2.26) 20.0 (0.79) 72.2 (2.84) 84.9 (3.34) M8x1.25 5/16"-18 UNC-2B 13-20 Nm
7274.0-76.0
(2.91-2.99) 60.0 (2.36) 60.0 (2.36) 66.0 (2.60) 23.0 (0.91) 72.8 (2.87) 93.4 (3.68) M10x1.5 3/8"-16 UNC-2B 26-35 Nm
73 74.0-76.0
(2.91-2.99) 73.5 (2.89) 73.5 (2.89) 79.5 (3.13) 30.0 (1.18) 73.2 (2.88) 106.9 (4.21) M12x1.75 1/2"-13 UNC-2B 45-55 Nm
FL/FS
VISUAL
INDICATOR
1/4" QC
TERMINAL
M4x0.7 THREAD
10.00 (.394)
STUD LENGTH
CHICAGO, ILLINOIS 60631
3RD ANGLE
PROJECTION
5PSR SERIES
Littelfuse
®REVISION
DRWG NO.
TITLE
C
DRW DATE
GRAMS/PIECE
FINISH GOOD WT
myork 1/30/2017
MATL SPEC FINISH
UNLESS OTHERWISE SPECIFIED, DIMENSIONS ARE IN MILLIMETERS, DIMENSIONS IN
BRACKETS [ ] ARE INCHES DIMENSIONING AND DO NOT INCLUDE PLATING. TOLERANCING
TO BE INTERPRETED IN ACCORDANCE WITH ANSI Y14.5M-1994
DENOTES CRITICAL CHARACTERISTICS.
DENOTES CPK DIMENSIONS, -MINIMUM CPK VALUE
DENOTES A CHARACTERISTIC THAT PROVIDES AN INDICATION
OF PROCESS PERFORMANCE. PROCEDURE FOR MEASUREMENT
AND TRACKING TO BE DEFINED IN
LITTELFUSE INSPECTION INSTRUCTIONS.
DENOTES CP DIMENSIONS, -MINIMUM CP VALUE
MUST BE WITHIN THE DIMENSIONAL LIMITATIONS
SHOWN ON DRAWING AND INITIALLY LOCATED TO
ALLOW FOR MAXIMUM TOOL LIFE.
CPK
CP
SHEET 1 OF 1
SCALE
PSR SERIES OUTLINE
NTS
REVISION
REV DATE DESCRIPTION
11/30/17 UNCONTROLLED DOCUMENT MRY
23/1/17 ADD THREAD DIMENSIONS MRY
33/2/17 UPDATE THREAD COLUMN HEADERS MRY
44/24/17 CHANGE 33 DIM A MRY
511/5/18 CHG DIM A, ADD SIZE 31, 70 & 73, ADD NEW VIEW MRY
E
C
BD
G
A
F
DIMENSIONS MM (IN)
CASE SIZE A B C D E F G FL METRIC THREAD FS INCHES THREAD RECOMMENDED
TORQUE
30 49.0-51.0
(1.93-2.01) 43.0 (1.69) 43.0 (1.69) 49.0 (1.93) 17.0 (0.67) 47.4 (1.86) 76.4 (3.01) M8x1.25 5/16"-18 UNC-2B 13-20 Nm
31 49.0-51.0
(1.93-2.01) 51.5 (2.03) 51.5 (2.03) 57.5 (2.26) 20.0 (0.80) 48.2 (1.90) 84.9 (3.34) M8x1.25 5/16"-18 UNC-2B 13-20 Nm
32 50.0-52.0
(1.97-2.05) 60.0 (2.36) 60.0 (2.36) 66.0 (2.60) 23.0 (0.91) 48.8 (1.92) 93.4 (3.68) M10x1.5 3/8"-16 UNC-2B 26-35 Nm
33 50.0-52.0
(1.97-2.05) 73.5 (2.89) 73.5 (2.89) 79.5 (3.13) 30.0 (1.18) 49.2 (1.94) 106.9 (4.21) M12x1.75 1/2"-13 UNC-2B 45-55 Nm
70 73.0-75.0
(2.87-2.95) 43.0 (1.69) 43.0 (1.69) 49.0 (1.93) 17.0 (0.70) 741.4 (2.81) 76.4 (3.01) M8x1.25 5/16"-18 UNC-2B 13-20 Nm
71 73.3-74.7
(2.89-2.94) 51.5 (2.03) 51.5 (2.03) 57.5 (2.26) 20.0 (0.79) 72.2 (2.84) 84.9 (3.34) M8x1.25 5/16"-18 UNC-2B 13-20 Nm
72 74.0-76.0
(2.91-2.99) 60.0 (2.36) 60.0 (2.36) 66.0 (2.60) 23.0 (0.91) 72.8 (2.87) 93.4 (3.68) M10x1.5 3/8"-16 UNC-2B 26-35 Nm
73 74.0-76.0
(2.91-2.99) 73.5 (2.89) 73.5 (2.89) 79.5 (3.13) 30.0 (1.18) 73.2 (2.88) 106.9 (4.21) M12x1.75 1/2"-13 UNC-2B 45-55 Nm
FL/FS
VISUAL
INDICATOR
1/4" QC
TERMINAL
M4x0.7 THREAD
10.00 (.394)
STUD LENGTH
Micro-switch
(MS3H1000C/MS7H1500C)
POWR-SPEED® Fuses
Littelfuse.com/powr-speed
© 2019 Littelfuse, Inc.
7 of 52
PSR SERIES HIGH-SPEED SQUARE BODY
cflnl-Cé
PS 30 US 0550 Z
JflLL
% litleltuse‘
bpemseApphad \ ”Mummy!“
Littelfuse.com/psr
© 2019 Littelfuse, Inc.
Rev: 070519
1 of 21
POWR-SPEED® Fuse
PSR SERIES HIGH-SPEED SQUARE BODY
Specifi cations
Voltage Rating Ac: 550 V–1300 V
Dc: 480 V–1000 V
Amperage Rating 40 A–2000 A
Interrupting Rating Ac: 100 kA–200 kA
Dc: 150 kA
Time Constant 10 ms
Microswitch Yes
Mounting Bolted blade style
Material Body: ceramic
Contacts: plated copper
Approvals UL 248-13 Recognized (File: E71611)
cURus (File: E71611)
IEC 60269-4 (Class aR)
Environmental RoHS Compliant, REACH
Operating Temperature -55 °C to +125 °C
Storage Temperature Up to +35 °C with relative humidity <65 %
Country of Origin Mexico
Description
Littelfuse PSR series high-speed square body fuses are
specially designed for protection of power semiconductor
devices such as diodes, triacs, IGBTs, SCRs, MOSFETs,
and other solid-state devices that are typically designed
into power conversion and power conditioning equipment.
Variable frequency drives, inverters, UPS, rectifiers, and
soft-starters are examples of typical equipment designed
with sensitive power semiconductor devices that cannot
withstand any line surge or overcurrent conditions and
require high-speed protection.
Littelfuse POWR-SPEED® PSR series products offer
optimized circuit protection at the extremely fast speed
required to protect modern day power conversion devices.
Available in bolted blade style termination (typical in North
American market) with visual blown fuse indication standard
on all fuses and optional micro-switch for external indication.
Features/Benefi ts
Best in class dc performance
Extremely current limiting
Superior cycling capability
Global certifi cation cURus, IEC
Visual and optional microswitch fuse blown indication
Low watt-loss design
Compliance with US and Canadian requirements
Class aR performance according to IEC60269-4
Applications
Power conversion devices (UPS, inverter,
rectifi ers, drives)
Dc systems (dc common bus, dc injection braking)
Battery protection application (energy storage systems)
Electric vehicle charging stations
Heaters and power supplies
Semiconductor Fuses • Bolted Blade • 40 A—2000 A
Ordering Part Number
PSR 030 US 0550 Z
Termination
US = bolted short blade
UL = bolted long blade
Case Size
30, 31, 32, 33, 70, 71, 72, 73
Amperage
Series
Packing Quantity
X = (1 pc/box)
Z = (3 pcs/box)
SERIES CASE
SIZE TERMINATION AMPERAGE CATALOG
NUMBER
ORDERING PART
NUMBER
PSR 030 US 0550 PSR030US0550 PSR030US0550Z
Catalog Number
Recommended Accessories
Microswitch: MS3H1000C (Case Size 30 to 33)
MS7H1500C (Case Size 70 to 73)
Web Resources
Download technical documents: Littelfuse.com/psr
Note: high-speed fuses are designed for fi xed installations. They are
not intended for use in moving vehicle applications.
POWR-SPEED® Fuses
Littelfuse.com/powr-speed
© 2019 Littelfuse, Inc.
8 of 52
PSR SERIES HIGH-SPEED SQUARE BODY BOLTED BLADE
% litleltuse‘
J,» J \ A‘ mm L
J
Littelfuse.com/psr
© 2019 Littelfuse, Inc.
Rev: 070519
2 of 21
POWR-SPEED® Fuse
PSR SERIES HIGH-SPEED SQUARE BODY
Electrical Characteristics
CASE
SIZE
CATALOG NUMBER
AMPERAGE
RATING (A)
VOLTAGE
RATING (V)
INTERRUPTING
RATING MELTING
(PRE-ARC)
I2T (A2S)
TOTAL CLEARING
I2T (A2S) AT
RATED VOLTAGE
WATT LOSS
AT 100 %
RATED
CURRENT
(W)
AGENCY
CERTIFICATION
BOLTED SHORT
BLADE (US)
BOLTED LONG
BLADE (UL)
AC DC AC DC AC DC cURus
IEC UL
30
PSR030US0040 PSR030UL0040 40 690 700 600 200 kA 150 kA 76 280 260 13 •
PSR030US0050 PSR030UL0050 50 690 700 600 200 kA 150 k A 110 598 384 16 •
PSR030US0063 PSR030UL0063 63 690 700 600 200 kA 150 kA 176 1023 640 20 •
PSR030US0080 PSR030UL0080 80 690 700 600 200 kA 150 kA 304 1728 1252 24 •
PSR030US0100 PSR030UL0100 100 690 700 600 200 kA 150 k A 437 2835 1575 28 •
PSR030US0125 PSR030UL0125 125 690 700 600 200 kA 150 kA 707 4684 2783 37 •
PSR030US0160 PSR030UL0160 160 690 700 600 200 kA 150 kA 1359 9114 5507 40 •
PSR030US0200 PSR030UL0200 200 690 700 600 200 kA 150 kA 3012 15169 14700 40 •
PSR030US0250 PSR030UL0250 250 690 700 600 200 kA 150 kA 4668 29952 20833 52 •
PSR030US0315 PSR030UL0315 315 690 700 600 200 kA 150 k A 7131 61830 31600 64 •
PSR030US0350 PSR030UL0350 350 690 700 600 200 kA 150 kA 12007 85320 49273 66 •
PSR030US0400 PSR030UL0400 400 690 700 600 200 kA 150 kA 16209 114750 63367 78 •
PSR030US0450 PSR030UL0450 450 690 700 600 200 kA 150 kA 23133 160110 93533 80 •
PSR030US0500 PSR030UL0500 500 690 700 600 200 kA 150 k A 31429 225180 137333 84 •
PSR030US0550 PSR030UL0550 550 690 700 600 200 kA 150 kA 44323 268920 145400 85 •
31
PSR031US0200 PSR031UL0200 200 690 700 600 200 kA 150 kA 1965 17334 16188 49 •
PSR031US0250 PSR031UL0250 250 690 700 600 200 kA 150 kA 3789 35343 21080 52 •
PSR031US0315 PSR031UL0315 315 690 700 600 200 kA 150 kA 6862 59130 30694 63 •
PSR031US0350 PSR031UL0350 350 690 700 600 200 kA 150 kA 9523 76140 40996 67 •
PSR031US0400 PSR031UL0400 400 690 700 600 200 kA 150 kA 14770 124335 64359 70 •
PSR031US0450 PSR031UL0450 450 690 700 600 200 kA 150 kA 22457 178200 97444 70 •
PSR031US0500 PSR031UL0500 500 690 700 600 200 kA 150 kA 29751 251505 125935 74 •
PSR031US0550 PSR031UL0550 550 690 700 600 200 kA 150 k A 42056 289170 171845 86 •
PSR031US0630 PSR031UL0630 630 690 700 600 200 kA 150 kA 73513 507465 276315 87 •
PSR031US0700 PSR031UL0700 700 690 700 600 200 kA 150 kA 98187 601425 337260 93 •
PSR031US0800 PSR031UL0800 800 690 700 600 200 kA 150 kA 137208 848880 502815 107 •
32
PSR032US0400 PSR032UL0400 400 690 700 600 200 kA 150 k A 11104 79650 44533 87 •
PSR032US0450 PSR032UL0450 450 690 700 600 200 kA 150 kA 15535 116100 65463 88 •
PSR032US0500 PSR032UL0500 500 690 700 600 200 kA 150 kA 21573 161460 88277 94 •
PSR032US0550 PSR032UL0550 550 690 700 600 200 kA 150 kA 26327 177660 107960 106 •
PSR032US0630 PSR032UL0630 630 690 700 600 200 kA 150 kA 34790 234900 156963 114 •
PSR032US0700 PSR032UL0700 700 690 700 600 200 kA 150 kA 51191 291870 209287 127 •
PSR032US0800 PSR032UL0800 800 690 700 600 200 kA 150 k A 60125 472770 249000 152 •
PSR032US0900 PSR032UL0900 900 690 700 600 200 kA 150 k A 107785 764100 404000 145 •
PSR032US1000 PSR032UL1000 1000 690 700 600 200 kA 150 kA 190102 933120 672333 149 •
PSR032US1100 PSR032UL1100 1100 690 700 600 200 kA 150 kA 225379 1247400 744000 161 •
33
PSR033US0450 PSR033UL0450 450 690 700 600 200 kA 150 kA 13600 106380 58947 107 •
PSR033US0500 PSR033UL0500 500 690 700 600 200 kA 150 kA 16434 140400 77846 107 •
PSR033US0550 PSR033UL0550 550 690 700 600 200 kA 150 kA 23314 187650 100461 111 •
PSR033US0630 PSR033UL0630 630 690 700 600 200 kA 150 kA 38727 285930 142437 120 •
PSR033US0700 PSR033UL0700 700 690 700 600 200 kA 150 kA 56763 392580 209863 116 •
PSR033US0800 PSR033UL0800 800 690 700 600 200 kA 150 kA 84691 575505 348500 122 •
PSR033US0900 PSR033UL0900 900 690 700 600 200 kA 150 kA 122619 740340 451177 138 •
PSR033US1000 PSR033UL1000 1000 690 700 600 200 kA 150 k A 222350 1170450 787750 138 •
PSR033US1100 PSR033UL1100 1100 690 700 600 200 kA 150 kA 310824 1568700 821400 138 •
PSR033US1250 PSR033UL1250 1250 690 700 500 200 kA 150 k A 476902 2403000 1674333 145 •
PSR033US1400 PSR033UL1400 1400 690 700 500 200 kA 150 k A 583552 2920050 1979750 173 •
PSR033US1500 PSR033UL1500 1500 600 650 500 200 kA 150 kA 674538 2433200 1996733 182 •
PSR033US1600 PSR033UL1600 1600 600 650 500 200 kA 150 kA 779948 2942800 2301633 208 •
PSR033US1800 PSR033UL1800 1800 600 650 500 200 kA 150 kA 952196 3785040 2724180 260 •
PSR033US2000 PSR033UL2000 2000 550 600 480 200 kA 150 kA 1234315 4131600 3755180 264 •
POWR-SPEED® Fuses
Littelfuse.com/powr-speed
© 2019 Littelfuse, Inc.
9 of 52
PSR SERIES HIGH-SPEED SQUARE BODY BOLTED BLADE
tleltuse‘
u \ Am,
Littelfuse.com/psr
© 2019 Littelfuse, Inc.
Rev: 070519
3 of 21
POWR-SPEED® Fuse
PSR SERIES HIGH-SPEED SQUARE BODY
Electrical Characteristics (cont.)
CASE
SIZE
CATALOG NUMBER
AMPERAGE
RATING (A)
VOLTAGE
RATING (V)
INTERRUPTING
RATING MELTING
(PRE-ARC)
I2T (A2S)
TOTAL CLEARING
I2T (A2S) AT
RATED VOLTAGE
WATT LOSS
AT 100 %
RATED
CURRENT
(W)
AGENCY
CERTIFICATION
BOLTED LONG
BLADE (UL)
AC DC AC DC AC DC cURus
IEC UL
70
PSR070UL0050 50 1250 1300 1000 100 kA 150 kA 177 2050 400 21 •
PSR070UL0063 63 1250 1300 1000 100 kA 150 kA 273 3399 900 24 •
PSR070UL0080 80 1250 1300 1000 100 kA 150 kA 583 6732 2200 25 •
PSR070UL0100 100 1250 1300 1000 100 kA 150 kA 974 10996 3750 30 •
PSR070UL0125 125 1250 1300 1000 100 kA 150 kA 1352 13011 5150 44 •
PSR070UL0160 160 1250 1300 1000 100 kA 150 kA 2377 25662 8950 53 •
PSR070UL0200 200 1250 1300 1000 100 kA 150 kA 4177 39087 17267 62 •
PSR070UL0250 250 1250 1300 1000 100 kA 150 kA 8629 89790 36750 73 •
PSR070UL0280 280 1250 1300 1000 100 kA 150 kA 1184 4 113201 46750 77 •
PSR070UL0315 315 1250 1300 1000 100 kA 150 kA 18162 142051 66833 80 •
71
PSR071UL0160 160 1250 1300 1000 100 kA 150 kA 2756 24600 8800 45 •
PSR071UL0200 200 1250 1300 1000 100 kA 150 kA 4918 50307 19050 52 •
PSR071UL0250 250 1250 1300 1000 100 kA 150 kA 10592 104427 43100 55 •
PSR071UL0280 280 1250 1300 1000 100 kA 150 kA 13763 131897 54150 58 •
PSR071UL0315 315 1250 1300 1000 100 kA 150 kA 20882 200244 67450 59 •
PSR071UL0350 350 1250 1300 1000 100 kA 150 kA 23301 225500 102500 70 •
PSR071UL0400 400 1250 1300 1000 100 kA 150 kA 43211 374986 185000 76 •
PSR071UL0450 450 1250 1300 1000 100 kA 150 kA 55915 452394 241333 88 •
72
PSR072UL0250 250 1250 1300 1000 100 kA 150 kA 7737 72789 28567 64 •
PSR072UL0280 280 1250 1300 1000 100 kA 150 kA 10915 124538 46897 62 •
PSR072UL0315 315 1250 1300 1000 100 kA 150 kA 16187 145140 58867 69 •
PSR072UL0350 350 1250 1300 1000 100 kA 150 kA 18727 160447 69633 81 •
PSR072UL0400 400 1250 1300 1000 100 kA 150 kA 27112 243540 108000 93 •
PSR072UL0450 450 1250 1300 1000 100 kA 150 kA 35927 406413 159133 107 •
PSR072UL0500 500 1250 1300 1000 100 kA 150 kA 50398 425375 216333 115 •
PSR072UL0550 550 1250 1300 1000 100 kA 150 kA 73858 539833 271333 115 •
PSR072UL0630 630 1250 1300 1000 100 kA 150 kA 126126 942180 436000 119 •
73
PSR073UL0315 315 1250 1300 1000 100 kA 150 kA 10245 106600 38650 100 •
PSR073UL0350 350 1250 1300 1000 100 kA 150 kA 13586 159627 57467 100 •
PSR073UL0400 400 1250 1300 1000 100 kA 150 kA 19797 211273 86800 124 •
PSR073UL0450 450 1250 1300 1000 100 kA 150 kA 29834 279073 114333 122 •
PSR073UL0500 500 1250 1300 1000 100 kA 150 kA 42751 416437 184500 121 •
PSR073UL0550 550 1250 1300 1000 100 kA 150 kA 55513 491713 224500 130 •
PSR073UL0630 630 1250 1300 1000 100 kA 150 kA 94649 804338 377500 136 •
PSR073UL0700 700 1250 1300 1000 100 kA 150 kA 158097 1170960 575667 135 •
POWR-SPEED® Fuses
Littelfuse.com/powr-speed
© 2019 Littelfuse, Inc.
10 of 52
PSR SERIES HIGH-SPEED SQUARE BODY BOLTED BLADE
% litleltuse'
Jmuimm \ AW,” mm m
Littelfuse.com/psr
© 2019 Littelfuse, Inc.
Rev: 070519
6 of 21
POWR-SPEED® Fuse
PSR SERIES HIGH-SPEED SQUARE BODY
Dimensions (US and UL)
CHICAGO, ILLINOIS 60631
3RD ANGLE
PROJECTION
2
PSR BLADE CUSTOMER OUTLINE
Littelfuse
®
REVISION
DRWG NO.
TITLE
C
DRW DATE
GRAMS/PIECE
FINISH GOOD WT
myork 11/6/2018
MATL SPEC FINISH
UNLESS OTHERWISE SPECIFIED, DIMENSIONS ARE IN MILLIMETERS, DIMENSIONS IN
BRACKETS [ ] ARE INCHES DIMENSIONING AND DO NOT INCLUDE PLATING. TOLERANCING
TO BE INTERPRETED IN ACCORDANCE WITH ANSI Y14.5M-1994
DENOTES CRITICAL CHARACTERISTICS.
DENOTES CPK DIMENSIONS, -MINIMUM CPK VALUE
DENOTES A CHARACTERISTIC THAT PROVIDES AN INDICATION
OF PROCESS PERFORMANCE. PROCEDURE FOR MEASUREMENT
AND TRACKING TO BE DEFINED IN
LITTELFUSE INSPECTION INSTRUCTIONS.
DENOTES CP DIMENSIONS, -MINIMUM CP VALUE
MUST BE WITHIN THE DIMENSIONAL LIMITATIONS
SHOWN ON DRAWING AND INITIALLY LOCATED TO
ALLOW FOR MAXIMUM TOOL LIFE.
CPK
CP
SHEET 2 OF 2
SCALE
PSR SERIES OUTLINE
NTS
H
EC
B
D
A
F
I
- US BLADE
DIMENSIONS MM (IN)
CASE SIZE MOUNTING
STYLE A B C D E F G H I RECOMMENDED
FASTENER
30 SHORT [US] 127.5 (5.02) 43.0 (1.69) 43.0 (1.69) 49.0 (1.93) 20.0 (0.79) 47.4 (1.86) 76.4 (3.01) 6.0 (0.24) 87.5 (3.44) 10mm (3/8)
31 SHORT [US] 133.0 (5.24) 51.5 (2.03) 51.5 (2.03) 57.5 (2.26) 25.0 (0.98) 48.2 (1.90) 84.9 (3.34) 6.0 (0.24) 88.5 (3.45) 12mm (1/2)
32 SHORT [US] 133.0 (5.24) 60.0 (2.36) 60.0 (2.36) 66.0 (2.60) 25.0 (0.98) 48.8 (1.92) 93.4 (3.68) 6.0 (0.24) 88.5 (3.45) 12mm (1/2)
33 SHORT [US] 135.0 (5.32) 73.5 (2.89) 73.5 (2.89) 79.5 (3.13) 36.0 (1.41) 49.2 (1.94) 106.9 (4.21) 6.0 (0.24) 91.5 (3.60) 14mm (9/16)
30 LONG [UL] 148.0 (5.83) 43.0 (1.69) 43.0 (1.69) 49.0 (1.93) 20.0 (0.79) 47.4 (1.86) 76.4 (3.01) 6.0 (0.24) 107.1 (4.22) 10mm (3/8)
31 LONG [UL] 153.0 (6.02) 51.5 (2.03) 51.5 (2.03) 57.5 (2.26) 25.0 (0.98) 48.2 (1.90) 84.9 (3.34) 6.0 (0.24) 110.3 (4.34) 12mm (1/2)
32 LONG [UL] 153.0 (6.02) 60.0 (2.36) 60.0 (2.36) 66.0 (2.60) 25.0 (0.98) 48.8 (1.92) 93.4 (3.68) 6.0 (0.24) 110.3 (4.34) 12mm (1/2)
33 LONG [UL] 155.0 (6.10) 73.5 (2.89) 73.5 (2.89) 79.5 (3.13) 36.0 (1.41) 49.2 (1.94) 106.9 (4.21) 6.0 (0.24) 110.5 (4.35) 14mm (9/16)
70 LONG [UL] 151.5 (5.97) 43.0 (1.69) 43.0 (1.69) 49.0 (1.93) 20.0 (0.79) 71.4 (2.81) 76.4 (3.01) 6.0 (0.24) 111.5 (4.39) 10mm (3/8)
71 LONG [UL] 157.0 (6.18) 51.5 (2.03) 51.5 (2.03) 57.5 (2.26) 25.0 (0.98) 72.2 (2.84) 84.9 (3.34) 6.0 (0.24) 112.5 (4.43) 12mm (1/2)
72 LONG [UL] 157.0 (6.18) 60.0 (2.36) 60.0 (2.36) 66.0 (2.60) 25.0 (0.98) 72.8 (2.87) 93.4 (3.68) 6.0 (0.24) 112.5 (4.43) 12mm (1/2)
73 LONG [UL] 159.0 (6.26) 73.5 (2.89) 73.5 (2.89) 79.5 (3.13) 36.0 (1.41) 73.2 (2.88) 106.9 (4.21) 6.0 (0.24) 115.5 (4.55) 14mm (9/16)
G
1/4" QC
TERMINAL VISUAL INDICATOR
M4x0.7 THREAD
10.00 (.394)
STUD LENGTH
CHICAGO, ILLINOIS 60631
3RD ANGLE
PROJECTION
2
PSR BLADE CUSTOMER OUTLINE
Littelfuse
®
REVISION
DRWG NO.
TITLE
C
DRW DATE
GRAMS/PIECE
FINISH GOOD WT
myork 11/6/2018
MATL SPEC FINISH
UNLESS OTHERWISE SPECIFIED, DIMENSIONS ARE IN MILLIMETERS, DIMENSIONS IN
BRACKETS [ ] ARE INCHES DIMENSIONING AND DO NOT INCLUDE PLATING. TOLERANCING
TO BE INTERPRETED IN ACCORDANCE WITH ANSI Y14.5M-1994
DENOTES CRITICAL CHARACTERISTICS.
DENOTES CPK DIMENSIONS, -MINIMUM CPK VALUE
DENOTES A CHARACTERISTIC THAT PROVIDES AN INDICATION
OF PROCESS PERFORMANCE. PROCEDURE FOR MEASUREMENT
AND TRACKING TO BE DEFINED IN
LITTELFUSE INSPECTION INSTRUCTIONS.
DENOTES CP DIMENSIONS, -MINIMUM CP VALUE
MUST BE WITHIN THE DIMENSIONAL LIMITATIONS
SHOWN ON DRAWING AND INITIALLY LOCATED TO
ALLOW FOR MAXIMUM TOOL LIFE.
CPK
CP
SHEET 2 OF 2
SCALE
PSR SERIES OUTLINE
NTS
H
EC
B
D
A
F
I
- US BLADE
DIMENSIONS MM (IN)
CASE SIZE MOUNTING
STYLE A B C D E F G H I RECOMMENDED
FASTENER
30 SHORT [US] 127.5 (5.02) 43.0 (1.69) 43.0 (1.69) 49.0 (1.93) 20.0 (0.79) 47.4 (1.86) 76.4 (3.01) 6.0 (0.24) 87.5 (3.44) 10mm (3/8)
31 SHORT [US] 133.0 (5.24) 51.5 (2.03) 51.5 (2.03) 57.5 (2.26) 25.0 (0.98) 48.2 (1.90) 84.9 (3.34) 6.0 (0.24) 88.5 (3.45) 12mm (1/2)
32 SHORT [US] 133.0 (5.24) 60.0 (2.36) 60.0 (2.36) 66.0 (2.60) 25.0 (0.98) 48.8 (1.92) 93.4 (3.68) 6.0 (0.24) 88.5 (3.45) 12mm (1/2)
33 SHORT [US] 135.0 (5.32) 73.5 (2.89) 73.5 (2.89) 79.5 (3.13) 36.0 (1.41) 49.2 (1.94) 106.9 (4.21) 6.0 (0.24) 91.5 (3.60) 14mm (9/16)
30 LONG [UL] 148.0 (5.83) 43.0 (1.69) 43.0 (1.69) 49.0 (1.93) 20.0 (0.79) 47.4 (1.86) 76.4 (3.01) 6.0 (0.24) 107.1 (4.22) 10mm (3/8)
31 LONG [UL] 153.0 (6.02) 51.5 (2.03) 51.5 (2.03) 57.5 (2.26) 25.0 (0.98) 48.2 (1.90) 84.9 (3.34) 6.0 (0.24) 110.3 (4.34) 12mm (1/2)
32 LONG [UL] 153.0 (6.02) 60.0 (2.36) 60.0 (2.36) 66.0 (2.60) 25.0 (0.98) 48.8 (1.92) 93.4 (3.68) 6.0 (0.24) 110.3 (4.34) 12mm (1/2)
33 LONG [UL] 155.0 (6.10) 73.5 (2.89) 73.5 (2.89) 79.5 (3.13) 36.0 (1.41) 49.2 (1.94) 106.9 (4.21) 6.0 (0.24) 110.5 (4.35) 14mm (9/16)
70 LONG [UL] 151.5 (5.97) 43.0 (1.69) 43.0 (1.69) 49.0 (1.93) 20.0 (0.79) 71.4 (2.81) 76.4 (3.01) 6.0 (0.24) 1 11.5 (4.39) 10mm (3/8)
71 LONG [UL] 157.0 (6.18) 51.5 (2.03) 51.5 (2.03) 57.5 (2.26) 25.0 (0.98) 72.2 (2.84) 84.9 (3.34) 6.0 (0.24) 112.5 (4.43) 12mm (1/2)
72 LONG [UL] 157.0 (6.18) 60.0 (2.36) 60.0 (2.36) 66.0 (2.60) 25.0 (0.98) 72.8 (2.87) 93.4 (3.68) 6.0 (0.24) 112.5 (4.43) 12mm (1/2)
73 LONG [UL] 159.0 (6.26) 73.5 (2.89) 73.5 (2.89) 79.5 (3.13) 36.0 (1.41) 73.2 (2.88) 106.9 (4.21) 6.0 (0.24) 115.5 (4.55) 14mm (9/16)
G
1/4" QC
TERMINAL VISUAL INDICATOR
M4x0.7 THREAD
10.00 (.394)
STUD LENGTH
CHICAGO, ILLINOIS 60631
3RD ANGLE
PROJECTION
2
PSR BLADE CUSTOMER OUTLINE
Littelfuse
®REVISION
DRWG NO.
TITLE
C
DRW DATE
GRAMS/PIECE
FINISH GOOD WT
myork 11/6/2018
MATL SPEC FINISH
UNLESS OTHERWISE SPECIFIED, DIMENSIONS ARE IN MILLIMETERS, DIMENSIONS IN
BRACKETS [ ] ARE INCHES DIMENSIONING AND DO NOT INCLUDE PLATING. TOLERANCING
TO BE INTERPRETED IN ACCORDANCE WITH ANSI Y14.5M-1994
DENOTES CRITICAL CHARACTERISTICS.
DENOTES CPK DIMENSIONS, -MINIMUM CPK VALUE
DENOTES A CHARACTERISTIC THAT PROVIDES AN INDICATION
OF PROCESS PERFORMANCE. PROCEDURE FOR MEASUREMENT
AND TRACKING TO BE DEFINED IN
LITTELFUSE INSPECTION INSTRUCTIONS.
DENOTES CP DIMENSIONS, -MINIMUM CP VALUE
MUST BE WITHIN THE DIMENSIONAL LIMITATIONS
SHOWN ON DRAWING AND INITIALLY LOCATED TO
ALLOW FOR MAXIMUM TOOL LIFE.
CPK
CP
SHEET 2 OF 2
SCALE
PSR SERIES OUTLINE
NTS
H
EC
B
D
A
F
I
- US BLADE
DIMENSIONS MM (IN)
CASE SIZE MOUNTING
STYLE A B C D E F G H I RECOMMENDED
FASTENER
30 SHORT [US] 127.5 (5.02) 43.0 (1.69) 43.0 (1.69) 49.0 (1.93) 20.0 (0.79) 47.4 (1.86) 76.4 (3.01) 6.0 (0.24) 87.5 (3.44) 10mm (3/8)
31 SHORT [US] 133.0 (5.24) 51.5 (2.03) 51.5 (2.03) 57.5 (2.26) 25.0 (0.98) 48.2 (1.90) 84.9 (3.34) 6.0 (0.24) 88.5 (3.45) 12mm (1/2)
32 SHORT [US] 133.0 (5.24) 60.0 (2.36) 60.0 (2.36) 66.0 (2.60) 25.0 (0.98) 48.8 (1.92) 93.4 (3.68) 6.0 (0.24) 88.5 (3.45) 12mm (1/2)
33 SHORT [US] 135.0 (5.32) 73.5 (2.89) 73.5 (2.89) 79.5 (3.13) 36.0 (1.41) 49.2 (1.94) 106.9 (4.21) 6.0 (0.24) 91.5 (3.60) 14mm (9/16)
30 LONG [UL] 148.0 (5.83) 43.0 (1.69) 43.0 (1.69) 49.0 (1.93) 20.0 (0.79) 47.4 (1.86) 76.4 (3.01) 6.0 (0.24) 107.1 (4.22) 10mm (3/8)
31 LONG [UL] 153.0 (6.02) 51.5 (2.03) 51.5 (2.03) 57.5 (2.26) 25.0 (0.98) 48.2 (1.90) 84.9 (3.34) 6.0 (0.24) 110.3 (4.34) 12mm (1/2)
32 LONG [UL] 153.0 (6.02) 60.0 (2.36) 60.0 (2.36) 66.0 (2.60) 25.0 (0.98) 48.8 (1.92) 93.4 (3.68) 6.0 (0.24) 110.3 (4.34) 12mm (1/2)
33 LONG [UL] 155.0 (6.10) 73.5 (2.89) 73.5 (2.89) 79.5 (3.13) 36.0 (1.41) 49.2 (1.94) 106.9 (4.21) 6.0 (0.24) 110.5 (4.35) 14mm (9/16)
70 LONG [UL] 151.5 (5.97) 43.0 (1.69) 43.0 (1.69) 49.0 (1.93) 20.0 (0.79) 71.4 (2.81) 76.4 (3.01) 6.0 (0.24) 111.5 (4.39) 10mm (3/8)
71 LONG [UL] 157.0 (6.18) 51.5 (2.03) 51.5 (2.03) 57.5 (2.26) 25.0 (0.98) 72.2 (2.84) 84.9 (3.34) 6.0 (0.24) 112.5 (4.43) 12mm (1/2)
72 LONG [UL] 157.0 (6.18) 60.0 (2.36) 60.0 (2.36) 66.0 (2.60) 25.0 (0.98) 72.8 (2.87) 93.4 (3.68) 6.0 (0.24) 112.5 (4.43) 12mm (1/2)
73 LONG [UL] 159.0 (6.26) 73.5 (2.89) 73.5 (2.89) 79.5 (3.13) 36.0 (1.41) 73.2 (2.88) 106.9 (4.21) 6.0 (0.24) 115.5 (4.55) 14mm (9/16)
G
1/4" QC
TERMINAL VISUAL INDICATOR
M4x0.7 THREAD
10.00 (.394)
STUD LENGTH
DIMENSIONS MM (IN)
CASE
SIZE
MOUNTING
STYLE A B C D E F G H I J RECOMMENDED
FASTENER
30
Short [US] 127.5
(5.02)
43.0
(1.69)
43.0
(1.69)
49.0
(1.93)
20.0
(0.79)
47.4
(1.86)
76.4
(3.01)
6.0
(0.24)
68.1
(2.68)
107.1
(4.22) 10 mm (3/8)
Long [UL] 148.0
(5.83)
43.0
(1.69)
43.0
(1.69)
49.0
(1.93)
20.0
(0.79)
47.4
(1.86)
76.4
(3.01)
6.0
(0.24)
87.7
(3.45)
126.7
(4.99) 10 mm (3/8)
31
Short [US] 133.0
(5.24)
51.5
(2.03)
51.5
(2.03)
57.5
(2.26)
25.0
(0.98)
48.2
(1.90)
84.9
(3.34)
6.0
(0.24)
68.1
(2.68)
109.1
(4.30) 12 mm (1/2)
Long [UL] 153.0
(6.02)
51.5
(2.03)
51.5
(2.03)
57.5
(2.26)
25.0
(0.98)
48.2
(1.90)
84.9
(3.34)
6.0
(0.24)
91.4
(3.59)
128.9
(5.07) 12 mm (1/2)
32
Short [US] 133.0
(5.24)
60.0
(2.36)
60.0
(2.36)
66.0
(2.60)
25.0
(0.98)
48.2
(1.90)
93.4
(3.68)
6.0
(0.24)
68.0
(2.67)
109.0
(4.29) 12 mm (1/2)
Long [UL] 153.0
(6.02)
60.0
(2.36)
60.0
(2.36)
66.0
(2.60)
25.0
(0.98)
48.2
(1.90)
93.4
(3.68)
6.0
(0.24)
91.5
(3.60)
129.0
(5.08) 12 mm (1/2)
33
Short [US] 135.0
(5.32)
73.5
(2.89)
73.5
(2.89)
79.5
(3.13)
36.0
(1.41)
49.2
(1.94)
106.9
(4.21)
6.0
(0.24)
75.1
(2.96)
108.1
(4.26) 14 mm (9/16)
Long [UL] 155.0
(6.10)
73.5
(2.89)
73.5
(2.89)
79.5
(3.13)
36.0
(1.41)
49.2
(1.94)
106.9
(4.21)
6.0
(0.24)
94.0
(3.70)
127.0
(5.00) 14 mm (9/16)
70 Long [UL] 151.5
(5.97)
43.0
(1.69)
43.0
(1.69)
49.0
(1.93)
20.0
(0.79)
71.4
(2.81)
76.4
(3.01)
6.0
(0.24)
92.0
(3.62)
131.0
(5.16) 10 mm (3/8)
71 Long [UL] 157.0
(6.18)
51.5
(2.03)
51.5
(2.03)
57.5
(2.26)
25.0
(0.98)
72.2
(2.84)
84.9
(3.34)
6.0
(0.24)
92.0
(3.62)
133.0
(5.24) 12 mm (1/2)
72 Long [UL] 157.0
(6.18)
60.0
(2.36)
60.0
(2.36)
66.0
(2.60)
25.0
(0.98)
72.2
(2.84)
93.4
(3.68)
6.0
(0.24)
92.0
(3.62)
133.0
(5.24) 12 mm (1/2)
73 Long [UL] 159.0
(6.26)
73.5
(2.89)
73.5
(2.89)
79.5
(3.13)
36.0
(1.41)
73.2
(2.88)
106.9
(4.21)
6.0
(0.24)
99.0
(3.90)
132.0
(5.20) 14 mm (9/16)
POWR-SPEED® Fuses
Littelfuse.com/powr-speed
© 2019 Littelfuse, Inc.
11 of 52
PSR SERIES HIGH-SPEED SQUARE BODY BOLTED BLADE
CNN-“e.
PS 30 DS 0550 Z
flJLL
% litleltuse'
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Littelfuse.com/psr
© 2019 Littelfuse, Inc.
Rev: 070919
1 of 21
POWR-SPEED® Fuse
PSR SERIES HIGH-SPEED SQUARE BODY
Specifi cations
Voltage Rating Ac: 550 V–1300 V
Dc: 480 V–1000 V
Amperage Rating 40 A–2000 A
Interrupting Rating Ac: 100 kA–200 kA
Dc: 150 kA
Time Constant 10 ms
Microswitch Yes
Mounting DIN 43653 blade style
Material Body: ceramic
Contacts: plated copper
Approvals UL 248-13 Recognized (File: E71611)
C-UR-US (File: E71611)
IEC 60269-4 (Class aR)
CCC
Environmental RoHS Compliant, REACH
Operating Temperature -55 °C to +125 °C
Storage Temperature Up to +35 °C with relative humidity <65 %
Country of Origin Mexico
Description
Littelfuse PSR series high-speed square body fuses are
specially designed for protection of power semiconductor
devices such as diodes, triacs, IGBTs, SCRs, MOSFETs,
and other solid-state devices that are typically designed
into power conversion and power conditioning equipment.
Variable frequency drives, inverters, UPS, rectifiers, and
soft-starters are examples of typical equipment designed
with sensitive power semiconductor devices that cannot
withstand any line surge or overcurrent conditions and
require high-speed protection.
Littelfuse POWR-SPEED® PSR series products offer
optimized circuit protection at the extremely fast speed
required to protect modern day power conversion devices.
Available in DIN43653 blade style termination with visual
blown fuse indication standard on all fuses and optional
micro-switch for external indication.
Features/Benefi ts
Best in Class dc performance
Extremely current limiting
Superior cycling capability
Global certifi cation cURus, CCC, IEC
Visual and optional microswitch fuse blown indication
Low watt-loss design
Compliance with US and Canadian requirements
Class aR performance according to IEC60269-4
Applications
Power conversion devices (UPS, inverter,
rectifi ers, drives)
Dc systems (dc common bus, dc injection braking)
Battery protection application (energy storage systems)
Electric vehicle charging stations
Heaters and power supplies
Semiconductor Fuses • DIN 43653 Blade • 40 A—2000 A S
Ordering Part Number
PSR 030 DS 0550 Z
Termination
DS = DIN 80 mm fi xing
DL = DIN 110 mm fi xing
Case Size
30, 31, 32, 33, 70, 71, 72, 73
Amperage
Series
Packing Quantity
X = (1 pc/box)
Z = (3 pcs/box)
SERIES CASE
SIZE TERMINATION AMPERAGE CATALOG
NUMBER
ORDERING
PART NUMBER
PSR 030 DS 0550 PSR030DS0550 PSR030DS0550Z
Catalog Number
Recommended Accessories
Microswitch: MS3H1000C (Case Size 30 to 33)
MS7H1500C (Case Size 70 to 73)
Web Resources
Download technical documents: Littelfuse.com/psr
Note: high-speed fuses are designed for fi xed installations. They are not
intended for use in moving vehicle applications.
POWR-SPEED® Fuses
Littelfuse.com/powr-speed
© 2019 Littelfuse, Inc.
12 of 52
PSR SERIES HIGH-SPEED SQUARE BODY DIN BLADE
% litleltuse‘
J,» J \ A‘ mm L
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Littelfuse.com/psr
© 2019 Littelfuse, Inc.
Rev: 070919
2 of 21
POWR-SPEED® Fuse
PSR SERIES HIGH-SPEED SQUARE BODY
Electrical Characteristics
CASE
SIZE
CATALOG NUMBER
AMPERAGE
RATING (A)
VOLTAGE
RATING (V)
INTERRUPTING
RATING MELTING
(PRE-ARC)
I2T (A2S)
TOTAL CLEARING
I2T (A2S) AT
RATED VOLTAGE
WATT LOSS
AT 100 %
RATED
CURRENT (W)
AGENCY
CERTIFICATION
DIN 80 MM
FIXING (DS)
DIN 110 MM
FIXING (DL)
AC DC AC DC AC DC cURus CCC
IEC UL
30
PSR030DS0040 PSR030DL0040 40 690 700 600 200 kA 150 kA 76 280 260 13 • •
PSR030DS0050 PSR030DL0050 50 690 700 600 200 kA 150 k A 110 598 384 16 • •
PSR030DS0063 PSR030DL0063 63 690 700 600 200 kA 150 kA 176 1023 640 20 • •
PSR030DS0080 PSR030DL0080 80 690 700 600 200 kA 150 kA 304 1728 1252 24 • •
PSR030DS0100 PSR030DL0100 100 690 700 600 200 kA 150 kA 437 2835 1575 28 • •
PSR030DS0125 PSR030DL0125 125 690 700 600 200 kA 150 kA 707 4684 2783 37 • •
PSR030DS0160 PSR030DL0160 160 690 700 600 200 kA 150 kA 1359 9114 5507 40 • •
PSR030DS0200 PSR030DL0200 200 690 700 600 200 kA 150 k A 3012 15169 14700 40 • •
PSR030DS0250 PSR030DL0250 250 690 700 600 200 kA 150 kA 4668 29952 20833 52 • •
PSR030DS0315 PSR030DL0315 315 690 700 600 200 kA 150 kA 7131 61830 31600 64 • •
PSR030DS0350 PSR030DL0350 350 690 700 600 200 kA 150 kA 12007 85320 49273 66 • •
PSR030DS0400 PSR030DL0400 400 690 700 600 200 kA 150 kA 16209 114750 63367 78 • •
PSR030DS0450 PSR030DL0450 450 690 700 600 200 kA 150 kA 23133 160110 93533 80 • •
PSR030DS0500 PSR030DL0500 500 690 700 600 200 kA 150 kA 31429 225180 137333 84 • •
PSR030DS0550 PSR030DL0550 550 690 700 600 200 kA 150 kA 44323 268920 145400 85 • •
31
PSR031DS0200 PSR031DL0200 200 690 700 600 200 kA 150 kA 1965 17334 16188 49 • •
PSR031DS0250 PSR031DL0250 250 690 700 600 200 kA 150 kA 3789 35343 21080 52 • •
PSR031DS0315 PSR031DL0315 315 690 700 600 200 kA 150 kA 6862 59130 30694 63 • •
PSR031DS0350 PSR031DL0350 350 690 700 600 200 kA 150 kA 9523 76140 40996 67 • •
PSR031DS0400 PSR031DL0400 400 690 700 600 200 kA 150 kA 14770 124335 64359 70 • •
PSR031DS0450 PSR031DL0450 450 690 700 600 200 kA 150 k A 22457 178200 97444 70 • •
PSR031DS0500 PSR031DL0500 500 690 700 600 200 kA 150 kA 29751 251505 125935 74 • •
PSR031DS0550 PSR031DL0550 550 690 700 600 200 kA 150 kA 42056 289170 171845 86 • •
PSR031DS0630 PSR031DL0630 630 690 700 600 200 kA 150 kA 73513 507465 276315 87 • •
PSR031DS0700 PSR031DL0700 700 690 700 600 200 kA 150 kA 98187 601425 337260 93 • •
PSR031DS0800 PSR031DL0800 800 690 700 600 200 kA 150 kA 137208 848880 502815 107 • •
32
PSR032DS0400 PSR032DL0400 400 690 700 600 200 kA 150 kA 11104 79650 44533 87 • •
PSR032DS0450 PSR032DL0450 450 690 700 600 200 kA 150 kA 15535 116100 65463 88 • •
PSR032DS0500 PSR032DL0500 500 690 700 600 200 kA 150 kA 21573 161460 88277 94 • •
PSR032DS0550 PSR032DL0550 550 690 700 600 200 kA 150 kA 26327 177660 107960 106 • •
PSR032DS0630 PSR032DL0630 630 690 700 600 200 kA 150 kA 34790 234900 156963 114 • •
PSR032DS0700 PSR032DL0700 700 690 700 600 200 kA 150 kA 51191 291870 209287 127 • •
PSR032DS0800 PSR032DL0800 800 690 700 600 200 kA 150 k A 60125 472770 249000 152 • •
PSR032DS0900 PSR032DL0900 900 690 700 600 200 kA 150 kA 107785 764100 404000 145 • •
PSR032DS1000 PSR032DL1000 1000 690 700 600 200 kA 150 kA 190102 933120 672333 149 • •
PSR032DS1100 PSR032DL1100 1100 690 700 600 200 kA 150 kA 225379 1247400 744000 161 • •
33
PSR033DS0450 PSR033DL0450 450 690 700 600 200 kA 150 kA 13600 106380 58947 107 • •
PSR033DS0500 PSR033DL0500 500 690 700 600 200 kA 150 kA 16434 140400 77846 107 • •
PSR033DS0550 PSR033DL0550 550 690 700 600 200 kA 150 kA 23314 187650 100461 111 • •
PSR033DS0630 PSR033DL0630 630 690 700 600 200 kA 150 kA 38727 285930 142437 120 • •
PSR033DS0700 PSR033DL0700 700 690 700 600 200 kA 150 kA 56763 392580 209863 116 • •
PSR033DS0800 PSR033DL0800 800 690 700 600 200 kA 150 kA 84691 575505 348500 122 • •
PSR033DS0900 PSR033DL0900 900 690 700 600 200 kA 150 kA 122619 740340 451177 138 • •
PSR033DS1000 PSR033DL1000 1000 690 700 600 200 kA 150 kA 222350 11704 50 787750 138 • •
PSR033DS1100 PSR033DL1100 1100 690 700 600 200 kA 150 kA 310824 1568700 821400 138 • •
PSR033DS1250 PSR033DL1250 1250 690 700 500 200 kA 150 kA 476902 2403000 1674333 145 • •
PSR033DS1400 PSR033DL1400 1400 690 700 500 200 kA 150 kA 583552 2920050 1979750 173 • •
PSR033DS1500 PSR033DL1500 1500 600 650 500 200 kA 150 kA 674538 2433200 1996733 182 • •
PSR033DS1600 PSR033DL1600 1600 600 650 500 200 kA 150 kA 779948 2942800 2301633 208 • •
PSR033DS1800 PSR033DL1800 1800 600 650 500 200 kA 150 kA 952196 3785040 2724180 260 • •
PSR033DS2000 PSR033DL2000 2000 550 600 480 200 kA 150 kA 1234315 4131600 3755180 264 • •
POWR-SPEED® Fuses
Littelfuse.com/powr-speed
© 2019 Littelfuse, Inc.
13 of 52
PSR SERIES HIGH-SPEED SQUARE BODY DIN BLADE
tleltuse‘
u \ Am,
Littelfuse.com/psr
© 2019 Littelfuse, Inc.
Rev: 070919
3 of 21
POWR-SPEED® Fuse
PSR SERIES HIGH-SPEED SQUARE BODY
Electrical Characteristics (cont.)
CASE
SIZE
CATALOG NUMBER
AMPERAGE
RATING (A)
VOLTAGE
RATING (V)
INTERRUPTING
RATING MELTING
(PRE-ARC)
I2T (A2S)
TOTAL CLEARING
I2T (A2S) AT
RATED VOLTAGE
WATT
LOSS
AT 100 %
RATED
CURRENT
(W)
AGENCY
CERTIFICATION
DIN 110 MM FIXING
(DL)
AC DC AC DC AC DC cURus CCC
IEC UL
70
PSR070DL0050 50 1250 1300 1000 100 kA 150 kA 177 2050 400 21 • •
PSR070DL0063 63 1250 1300 1000 100 kA 150 kA 273 3399 900 24 • •
PSR070DL0080 80 1250 1300 1000 100 kA 150 kA 583 6732 2200 25 • •
PSR070DL0100 100 1250 1300 1000 100 kA 150 kA 974 10996 3750 30 • •
PSR070DL0125 125 1250 1300 1000 100 kA 150 kA 1352 13011 5150 44 • •
PSR070DL0160 160 1250 1300 1000 100 kA 150 kA 2377 25662 8950 53 • •
PSR070DL0200 200 1250 1300 1000 100 kA 150 kA 4177 39087 17267 62 • •
PSR070DL0250 250 1250 1300 1000 100 kA 150 kA 8629 89790 36750 73 • •
PSR070DL0280 280 1250 1300 1000 100 kA 150 kA 11844 113201 46750 77 • •
PSR070DL0315 315 1250 1300 1000 100 kA 150 kA 18162 142051 66833 80 • •
71
PSR071DL0160 160 1250 1300 1000 100 kA 150 kA 2756 24600 8800 45 • •
PSR071DL0200 200 1250 1300 1000 100 kA 150 kA 4918 50307 19050 52 • •
PSR071DL0250 250 1250 1300 1000 100 kA 150 kA 10592 104427 43100 55 • •
PSR071DL0280 280 1250 1300 1000 100 kA 150 kA 13763 131897 54150 58 • •
PSR071DL0315 315 1250 1300 1000 100 kA 150 kA 20882 200244 67450 59 • •
PSR071DL0350 350 1250 1300 1000 100 kA 150 kA 23301 225500 102500 70 • •
PSR071DL0400 400 1250 1300 1000 100 kA 150 kA 43211 374986 185000 76 • •
PSR071DL0450 450 1250 1300 1000 100 kA 150 kA 55915 452394 241333 88 • •
72
PSR072DL0250 250 1250 1300 1000 100 kA 150 kA 7737 72789 28567 64 • •
PSR072DL0280 280 1250 1300 1000 100 kA 150 kA 10915 124538 46897 62 • •
PSR072DL0315 315 1250 1300 1000 100 kA 150 kA 16187 145140 58867 69 • •
PSR072DL0350 350 1250 1300 1000 100 kA 150 kA 18727 160447 69633 81 • •
PSR072DL0400 400 1250 1300 1000 100 kA 150 kA 27112 243540 108000 93 • •
PSR072DL0450 450 1250 1300 1000 100 kA 150 kA 35927 406413 159133 107 • •
PSR072DL0500 500 1250 1300 1000 100 kA 150 kA 50398 425375 216333 115 • •
PSR072DL0550 550 1250 1300 1000 100 kA 150 kA 73858 539833 271333 115 • •
PSR072DL0630 630 1250 1300 1000 100 kA 150 kA 126126 942180 436000 119 • •
73
PSR073DL0315 315 1250 1300 1000 100 kA 150 kA 10245 106600 38650 100 • •
PSR073DL0350 350 1250 1300 1000 100 kA 150 kA 13586 159627 57467 100 • •
PSR073DL0400 400 1250 1300 1000 100 kA 150 kA 19797 211273 86800 124 • •
PSR073DL0450 450 1250 1300 1000 100 kA 150 kA 29834 279073 114333 122 • •
PSR073DL0500 500 1250 1300 1000 100 kA 150 kA 42751 416437 184500 121 • •
PSR073DL0550 550 1250 1300 1000 100 kA 150 kA 55513 491713 224500 130 • •
PSR073DL0630 630 1250 1300 1000 100 kA 150 kA 94649 804338 377500 136 • •
PSR073DL0700 700 1250 1300 1000 100 kA 150 kA 158097 1170960 575667 135 • •
POWR-SPEED® Fuses
Littelfuse.com/powr-speed
© 2019 Littelfuse, Inc.
14 of 52
PSR SERIES HIGH-SPEED SQUARE BODY DIN BLADE
% litleltuse'
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© 2019 Littelfuse, Inc.
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POWR-SPEED® Fuse
PSR SERIES HIGH-SPEED SQUARE BODY
Dimensions (DS and DL)
CHICAGO, ILLINOIS 60631
3RD ANGLE
PROJECTION
2
PSR BLADE CUSTOMER OUTLINE
Littelfuse
®
REVISION
DRWG NO.
TITLE
C
DRW DATE
GRAMS/PIECE
FINISH GOOD WT
myork 11/6/2018
MATL SPEC FINISH
UNLESS OTHERWISE SPECIFIED, DIMENSIONS ARE IN MILLIMETERS, DIMENSIONS IN
BRACKETS [ ] ARE INCHES DIMENSIONING AND DO NOT INCLUDE PLATING. TOLERANCING
TO BE INTERPRETED IN ACCORDANCE WITH ANSI Y14.5M-1994
DENOTES CRITICAL CHARACTERISTICS.
DENOTES CPK DIMENSIONS, -MINIMUM CPK VALUE
DENOTES A CHARACTERISTIC THAT PROVIDES AN INDICATION
OF PROCESS PERFORMANCE. PROCEDURE FOR MEASUREMENT
AND TRACKING TO BE DEFINED IN
LITTELFUSE INSPECTION INSTRUCTIONS.
DENOTES CP DIMENSIONS, -MINIMUM CP VALUE
MUST BE WITHIN THE DIMENSIONAL LIMITATIONS
SHOWN ON DRAWING AND INITIALLY LOCATED TO
ALLOW FOR MAXIMUM TOOL LIFE.
CPK
CP
SHEET 1 OF 2
SCALE
PSR SERIES OUTLINE
NTS
REVISION
REV DATE DESCRIPTION
111/6/18 DRAWING CREATED MRY
211/8/18 UPDATE TABLE, ADD VIEWS MRY
DIMENSIONS MM (IN)
CASE SIZE MOUNTING
STYLE A B C D E F G H I RECOMMENDED
FASTENER
30 DIN 80 [DS] 109.0 (4.29) 43.0 (1.69) 43.0 (1.69) 49.0 (1.93) 20.0 (0.79) 47.4 (1.86) 76.4 (3.01) 6.0 (0.24) 80.0 (3.15) 10mm (3/8)
31 DIN 80 [DS] 109.0 (4.29) 51.5 (2.03) 51.5 (2.03) 57.5 (2.26) 25.0 (0.98) 48.2 (1.90) 84.9 (3.34) 6.0 (0.24) 80.0 (3.15) 10mm (3/8)
32 DIN 80 [DS] 109.0 (4.29) 60.0 (2.36) 60.0 (2.36) 66.0 (2.60) 25.0 (0.98) 48.8 (1.92) 93.4 (3.68) 6.0 (0.24) 80.0 (3.15) 10mm (3/8)
33 DIN 80 [DS] 109.0 (4.29) 73.5 (2.89) 73.5 (2.89) 79.5 (3.13) 36.0 (1.41) 49.2 (1.94) 106.9 (4.21) 6.0 (0.24) 80.0 (3.15) 10mm (3/8)
30 DIN 110 [DL] 133.0 (5.24) 43.0 (1.69) 43.0 (1.69) 49.0 (1.93) 20.0 (0.79) 47.4 (1.86) 76.4 (3.01) 6.0 (0.24) 110.0 (4.33) 10mm (3/8)
31 DIN 110 [DL] 133.0 (5.24) 51.5 (2.03) 51.5 (2.03) 57.5 (2.26) 25.0 (0.98) 48.2 (1.90) 84.9 (3.34) 6.0 (0.24) 110.0 (4.33) 10mm (3/8)
32 DIN 110 [DL] 133.0 (5.24) 60.0 (2.36) 60.0 (2.36) 66.0 (2.60) 25.0 (0.98) 48.8 (1.92) 93.4 (3.68) 6.0 (0.24) 110.0 (4.33) 10mm (3/8)
33 DIN 110 [DL] 133.0 (5.24) 73.5 (2.89) 73.5 (2.89) 79.5 (3.13) 36.0 (1.41) 49.2 (1.94) 106.9 (4.21) 6.0 (0.24) 110.0 (4.33) 10mm (3/8)
70 DIN 110 [DL] 133.0 (5.24) 43.0 (1.69) 43.0 (1.69) 49.0 (1.93) 20.0 (0.79) 71.4 (2.81) 76.4 (3.01) 6.0 (0.24) 110.0 (4.33) 10mm (3/8)
71 DIN 110 [DL] 133.0 (5.24) 51.5 (2.03) 51.5 (2.03) 57.5 (2.26) 25.0 (0.98) 72.2 (2.84) 84.9 (3.34) 6.0 (0.24) 110.0 (4.33) 10mm (3/8)
72 DIN 110 [DL] 133.0 (5.24) 60.0 (2.36) 60.0 (2.36) 66.0 (2.60) 25.0 (0.98) 72.8 (2.87) 93.4 (3.68) 6.0 (0.24) 110.0 (4.33) 10mm (3/8)
73 DIN 110 [DL] 133.0 (5.24) 73.5 (2.89) 73. 5 (2.89) 79.5 (3.13) 36.0 (1.41) 73.2 (2.88) 106.9 (4.21) 6.0 (0.24) 110.0 (4.33) 10mm (3/8)
- DIN BLADE
C
BD
H
G
1/4" QC
TERMINAL VISUAL INDICATOR
M4x0.7 THREAD
10.00 (.394)
STUD LENGTH
E
A
I
F
CHICAGO, ILLINOIS 60631
3RD ANGLE
PROJECTION
2
PSR BLADE CUSTOMER OUTLINE
Littelfuse
®REVISION
DRWG NO.
TITLE
C
DRW DATE
GRAMS/PIECE
FINISH GOOD WT
myork 11/6/2018
MATL SPEC FINISH
UNLESS OTHERWISE SPECIFIED, DIMENSIONS ARE IN MILLIMETERS, DIMENSIONS IN
BRACKETS [ ] ARE INCHES DIMENSIONING AND DO NOT INCLUDE PLATING. TOLERANCING
TO BE INTERPRETED IN ACCORDANCE WITH ANSI Y14.5M-1994
DENOTES CRITICAL CHARACTERISTICS.
DENOTES CPK DIMENSIONS, -MINIMUM CPK VALUE
DENOTES A CHARACTERISTIC THAT PROVIDES AN INDICATION
OF PROCESS PERFORMANCE. PROCEDURE FOR MEASUREMENT
AND TRACKING TO BE DEFINED IN
LITTELFUSE INSPECTION INSTRUCTIONS.
DENOTES CP DIMENSIONS, -MINIMUM CP VALUE
MUST BE WITHIN THE DIMENSIONAL LIMITATIONS
SHOWN ON DRAWING AND INITIALLY LOCATED TO
ALLOW FOR MAXIMUM TOOL LIFE.
CPK
CP
SHEET 1 OF 2
SCALE
PSR SERIES OUTLINE
NTS
REVISION
REV DATE DESCRIPTION
111/6/18 DRAWING CREATED MRY
211/8/18 UPDATE TABLE, ADD VIEWS MRY
DIMENSIONS MM (IN)
CASE SIZE MOUNTING
STYLE A B C D E F G H I RECOMMENDED
FASTENER
30 DIN 80 [DS] 109.0 (4.29) 43.0 (1.69) 43.0 (1.69) 49.0 (1.93) 20.0 (0.79) 47.4 (1.86) 76.4 (3.01) 6.0 (0.24) 80.0 (3.15) 10mm (3/8)
31 DIN 80 [DS] 109.0 (4.29) 51.5 (2.03) 51.5 (2.03) 57.5 (2.26) 25.0 (0.98) 48.2 (1.90) 84.9 (3.34) 6.0 (0.24) 80.0 (3.15) 10mm (3/8)
32 DIN 80 [DS] 109.0 (4.29) 60.0 (2.36) 60.0 (2.36) 66.0 (2.60) 25.0 (0.98) 48.8 (1.92) 93.4 (3.68) 6.0 (0.24) 80.0 (3.15) 10mm (3/8)
33 DIN 80 [DS] 109.0 (4.29) 73.5 (2.89) 73.5 (2.89) 79.5 (3.13) 36.0 (1.41) 49.2 (1.94) 106.9 (4.21) 6.0 (0.24) 80.0 (3.15) 10mm (3/8)
30 DIN 110 [DL] 133.0 (5.24) 43.0 (1.69) 43.0 (1.69) 49.0 (1.93) 20.0 (0.79) 47.4 (1.86) 76.4 (3.01) 6.0 (0.24) 110.0 (4.33) 10mm (3/8)
31 DIN 110 [DL] 133.0 (5.24) 51.5 (2.03) 51.5 (2.03) 57.5 (2.26) 25.0 (0.98) 48.2 (1.90) 84.9 (3.34) 6.0 (0.24) 110.0 (4.33) 10mm (3/8)
32 DIN 110 [DL] 133.0 (5.24) 60.0 (2.36) 60.0 (2.36) 66.0 (2.60) 25.0 (0.98) 48.8 (1.92) 93.4 (3.68) 6.0 (0.24) 110.0 (4.33) 10mm (3/8)
33 DIN 110 [DL] 133.0 (5.24) 73.5 (2.89) 73.5 (2.89) 79.5 (3.13) 36.0 (1.41) 49.2 (1.94) 106.9 (4.21) 6.0 (0.24) 110.0 (4.33) 10mm (3/8)
70 DIN 110 [DL] 133.0 (5.24) 43.0 (1.69) 43.0 (1.69) 49.0 (1.93) 20.0 (0.79) 71.4 (2.81) 76.4 (3.01) 6.0 (0.24) 110.0 (4.33) 10mm (3/8)
71 DIN 110 [DL] 133.0 (5.24) 51.5 (2.03) 51.5 (2.03) 57.5 (2.26) 25.0 (0.98) 72.2 (2.84) 84.9 (3.34) 6.0 (0.24) 110.0 (4.33) 10mm (3/8)
72 DIN 110 [DL] 133.0 (5.24) 60.0 (2.36) 60.0 (2.36) 66.0 (2.60) 25.0 (0.98) 72.8 (2.87) 93.4 (3.68) 6.0 (0.24) 110.0 (4.33) 10mm (3/8)
73 DIN 110 [DL] 133.0 (5.24) 73.5 (2.89) 73.5 (2.89) 79.5 (3.13) 36.0 (1.41) 73.2 (2.88) 106.9 (4.21) 6.0 (0.24) 110.0 (4.33) 10mm (3/8)
- DIN BLADE
C
BD
H
G
1/4" QC
TERMINAL VISUAL INDICATOR
M4x0.7 THREAD
10.00 (.394)
STUD LENGTH
E
A
I
F
DIMENSIONS MM (IN)
CASE
SIZE
MOUNTING
STYLE A B C D E F G H I RECOMMENDED
FASTENER
30 DIN 80 [DS] 109.0 (4.29) 43.0 (1.69) 43.0 (1.69) 49.0 (1.93) 20.0 (0.79) 47.4 (1.86) 76.4 (3.01) 6.0 (0.24) 80.0 (3.15) 10 mm (3/8)
DIN 110 [DL] 133.0 (5.24) 43.0 (1.69) 43.0 (1.69) 49.0 (1.93) 20.0 (0.79) 47.4 (1.8 6) 76.4 (3.01) 6.0 (0.24) 110.0 (4.33) 10 mm (3/8)
31 DIN 80 [DS] 109.0 (4.29) 51.5 (2.03) 51.5 (2.03) 57.5 (2.26) 25.0 (0.98) 48.2 (1.90) 84.9 (3.34) 6.0 (0.24) 80.0 (3.15) 10 mm (3/8)
DIN 110 [DL] 133.0 (5.24) 51.5 (2.03) 51.5 (2.03) 57.5 (2.26) 25.0 (0.98) 48.2 (1.90) 84.9 (3.34) 6.0 (0.24) 110.0 (4.33) 10 mm (3/8)
32 DIN 80 [DS] 109.0 (4.29) 60.0 (2.36) 60.0 (2.36) 66.0 (2.60) 25.0 (0.98) 48.2 (1.90) 93.4 (3.68) 6.0 (0.24) 80.0 (3.15) 10 mm (3/8)
DIN 110 [DL] 133.0 (5.24) 60.0 (2.36) 60.0 (2.36) 66.0 (2.60) 25.0 (0.98) 48.2 (1.90) 93.4 (3.68) 6.0 (0.24) 110.0 (4.33) 10 mm (3/8)
33 DIN 80 [DS] 109.0 (4.29) 73.5 (2.89) 73.5 (2.89) 79.5 (3.13) 36.0 (1.41) 49.2 (1.94) 106.9 (4.21) 6.0 (0.24) 80.0 (3.15) 10 mm (3/8)
DIN 110 [DL] 133.0 (5.24) 73.5 (2.89) 73.5 (2.89) 79.5 (3.13) 36.0 (1.41) 49.2 (1.94) 106.9 (4.21) 6.0 (0.24) 110.0 (4.33) 10 mm (3/8)
70 DIN 110 [DL] 133.0 (5.24) 43.0 (1.69) 43.0 (1.69) 49.0 (1.93) 20.0 (0.79) 71.4 (2.81) 76.4 (3.01) 6.0 (0.24) 110.0 (4.33) 10 mm (3/8)
71 DIN 110 [DL] 133.0 (5.24) 51.5 (2.03) 51.5 (2.03) 57.5 (2.26) 25.0 (0.98) 72.2 (2.84) 84.9 (3.34) 6.0 (0.24) 110.0 (4.33) 10 mm (3/8)
72 DIN 110 [DL] 133.0 (5.24) 60.0 (2.36) 60.0 (2.36) 66.0 (2.60) 25.0 (0.98) 72.2 (2.84) 93.4 (3.68) 6.0 (0.24) 110.0 (4.33) 10 mm (3/8)
73 DIN 110 [DL] 133.0 (5.24) 73.5 (2.89) 73.5 (2.89) 79.5 (3.13) 36.0 (1.41) 73.2 (2.88) 106.9 (4.21) 6.0 (0.24) 110.0 (4.33) 10 mm (3/8)
POWR-SPEED® Fuses
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© 2019 Littelfuse, Inc.
15 of 52
PSR SERIES HIGH-SPEED SQUARE BODY DIN BLADE
cflus C€
% litleltuse'
bperluseADphad \ Answeumhvemd
Littelfuse.com/L75QS
© 2019 Littelfuse, Inc.
Rev: 1-B-073119
1 of 13
POWR-SPEED® Fuse
L75QS SERIES HIGH-SPEED ROUND BODY
Specifi cations
Voltage Rating Dc: 750 V
Amperage Rating 35–800 A
Interrupting Rating Dc: 50 kA
Time Constant 10 ms
Material Body: melamine
Caps: copper alloy
Approvals UL Recognized (E71611)
cURus (E71611)
Environmental RoHS Compliant, REACH
Country of Origin Mexico
Operating Temperature -55 °C to +125 °C
Storage Temperature Up to 35 °C with relative humidity <65 %
L75 QS 700 . X
Part Numbering System
Body Type
Ampere Code
Series
Package Quantity
X = 1 (225–800 A)
V = 5 (35–200 A)
SERIES BODY
TYPE
AMPERE
CODE
PACKAGE
QUANTITY
CATALOG
NUMBER
ORDERING
NUMBER
L75 QS 700 1L75QS700 L75QS700.X
Recommended Fuse Blocks
LSCR101 (35–100 A)
LSCR102 (125–800 A)
LSCR103 (450–800 A)
Web Resources
Download technical documents: Littelfuse.com/L75QS
Note: high-speed fuses are designed for fi xed installations. They are not
intended for use in moving vehicle applications.
Description
The L75QS series is a next generation high-speed fuse
for the protection of power semiconductor devices and is
designed in the traditional round body bolted style package.
L75QS series high-speed fuses rated at 750 V dc are
extremely current limiting and are used to protect power
converters, drives and control circuit applications. Designed
with lower I2t performance characteristics, these fuses
provide balanced performance to extend longevity while
lowering potentially damaging heat energy to the devices
being protected.
In addition L75QS series fuses have been designed with a
universal mounting option to meet customer requirements
for installation into a variety of application configurations.
Littelfuse POWR-SPEED products offer optimized circuit
protection at the extremely fast speed required to protect
modern day, sensitive, high-power semiconductor devices.
Features
Compliance with US and Canadian requirements
Traditional North American bolted style dimensions
750 V dc performance
Direct bus-bar mount or stud mount design
Halogen free, RoHS and REACH Compliant
Applications
Power converters (inverters, rectifi ers)
Power supplies, UPS
EV charging stations
Variable speed drives
Dc common bus
750 V dc • Very Fast Acting • 35–800 A HF
Littelfuse.com/L75QS
© 2019 Littelfuse, Inc.
Rev: 1-B-073119
2 of 13
POWR-SPEED® Fuse
L75QS SERIES HIGH-SPEED ROUND BODY
SERIES AMPERAGE
RATING
AMPERE
CODE
CATALOG
NUMBER
ORDERING
NUMBER
PACK
QUANTITY UPC
L75QS 35 035 L75QS035 L75QS035.V 5 Pcs/ Box 07945823571
L75QS 40 040 L75QS040 L75QS040.V 5 Pcs/ Box 07945823572
L75QS 50 050 L75QS050 L75QS050.V 5 Pcs/ Box 07945823573
L75QS 60 060 L75QS060 L75QS060.V 5 Pcs/ Box 07945823574
L75QS 70 070 L75QS070 L75QS070.V 5 Pcs/ Box 07945823575
L75QS 80 080 L75QS080 L75QS080.V 5 Pcs/ Box 07945823576
L75QS 90 090 L75QS090 L75QS090.V 5 Pcs/ Box 07945823577
L75QS 100 100 L75QS100 L75QS100.V 5 Pcs/ Box 07945823578
L75QS 125 125 L75QS125 L75QS125.V 5 Pcs/ Box 07945823579
L75QS 150 150 L75QS150 L75QS150.V 5 Pcs/ Box 07945823580
L75QS 175 175 L75QS175 L75QS175.V 5 Pcs/ Box 07945823581
L75QS 200 200 L75QS200 L75QS200.V 5 Pcs/ Box 07945823582
L75QS 225 225 L75QS225 L75QS225.X 1 Pc/ Box 07945823583
L75QS 250 250 L75QS250 L75QS250.X 1 Pc/ Box 07945823584
L75QS 300 300 L75QS300 L75QS300.X 1 Pc/ Box 07945823585
L75QS 350 350 L75QS350 L75QS350.X 1 Pc/ Box 07945823586
L75QS 400 400 L75QS400 L75QS400.X 1 Pc/ Box 07945823587
L75QS 450 450 L75QS450 L75QS450.X 1 Pc/ Box 07945823588
L75QS 500 500 L75QS500 L75QS500.X 1 Pc/ Box 07945823589
L75QS 600 600 L75QS600 L75QS600.X 1 Pc/ Box 07945823590
L75QS 700 700 L75QS700 L75QS700.X 1 Pc/ Box 07945823591
L75QS 800 800 L75QS800 L75QS800.X 1 Pc/ Box 07945823592
Ordering Information
Electrical Specifi cations
CATALOG
NUMBER
AMPERAGE
RATING
VOLTAGE
RATING
INTERRUPT
RATING MELTING
(PRE-ARC)
I2T (A2s)
TOTAL
CLEARING
I2T (A2s)
WATTS LOSS
AT 80 % RATED
CURRENT
WATTS LOSS
AT 100 % RATED
CURRENT
DC DC 50 KA @ 750 V DC
(W) (W)
L75QS035 35 750 50 kA 129 406 5 8
L75QS040 40 750 50 kA 153 549 6 9
L75QS050 50 750 50 kA 196 776 6 12
L75QS060 60 750 50 kA 269 895 9 15
L75QS070 70 750 50 kA 359 1,399 10 20
L75QS080 80 750 50 kA 452 1,841 12 22
L75QS090 90 750 50 kA 625 2,498 13 25
L75QS100 100 750 50 kA 966 3,053 15 30
L75QS125 125 750 50 kA 2,208 7,069 13 24
L75QS150 150 750 50 kA 3,026 10,401 17 32
L75QS175 175 750 50 kA 4,216 14,786 20 38
L75QS200 200 750 50 kA 5,529 20,433 22 42
L75QS225 225 750 50 kA 9,226 27,520 22 40
L75QS250 250 750 50 kA 10,999 34,291 27 46
L75QS300 300 750 50 kA 16,296 49,297 31 57
L75QS350 350 750 50 kA 24,778 70,696 35 67
L75QS400 400 750 50 kA 34,225 102,567 41 79
L75QS450 450 750 50 kA 38,946 119,606 45 81
L75QS500 500 750 50 kA 42,747 132,252 56 112
L75QS600 600 750 50 kA 67,363 189,333 67 138
L75QS700 700 750 50 kA 99,387 302,425 72 138
L75QS800 800 750 50 kA 156,137 421,500 76 142
POWR-SPEED® Fuses
Littelfuse.com/powr-speed
© 2019 Littelfuse, Inc.
16 of 52
L75QS SERIES HIGH-SPEED ROUND BODY
tleltuse‘
u \ Am,
Littelfuse.com/L75QS
© 2019 Littelfuse, Inc.
Rev: 1-B-073119
2 of 13
POWR-SPEED® Fuse
L75QS SERIES HIGH-SPEED ROUND BODY
SERIES AMPERAGE
RATING
AMPERE
CODE
CATALOG
NUMBER
ORDERING
NUMBER
PACK
QUANTITY UPC
L75QS 35 035 L75QS035 L75QS035.V 5 Pcs/ Box 07945823571
L75QS 40 040 L75QS040 L75QS040.V 5 Pcs/ Box 07945823572
L75QS 50 050 L75QS050 L75QS050.V 5 Pcs/ Box 07945823573
L75QS 60 060 L75QS060 L75QS060.V 5 Pcs/ Box 07945823574
L75QS 70 070 L75QS070 L75QS070.V 5 Pcs/ Box 07945823575
L75QS 80 080 L75QS080 L75QS080.V 5 Pcs/ Box 07945823576
L75QS 90 090 L75QS090 L75QS090.V 5 Pcs/ Box 07945823577
L75QS 100 100 L75QS100 L75QS100.V 5 Pcs/ Box 07945823578
L75QS 125 125 L75QS125 L75QS125.V 5 Pcs/ Box 07945823579
L75QS 150 150 L75QS150 L75QS150.V 5 Pcs/ Box 07945823580
L75QS 175 175 L75QS175 L75QS175.V 5 Pcs/ Box 07945823581
L75QS 200 200 L75QS200 L75QS200.V 5 Pcs/ Box 07945823582
L75QS 225 225 L75QS225 L75QS225.X 1 Pc/ Box 07945823583
L75QS 250 250 L75QS250 L75QS250.X 1 Pc/ Box 07945823584
L75QS 300 300 L75QS300 L75QS300.X 1 Pc/ Box 07945823585
L75QS 350 350 L75QS350 L75QS350.X 1 Pc/ Box 07945823586
L75QS 400 400 L75QS400 L75QS400.X 1 Pc/ Box 07945823587
L75QS 450 450 L75QS450 L75QS450.X 1 Pc/ Box 07945823588
L75QS 500 500 L75QS500 L75QS500.X 1 Pc/ Box 07945823589
L75QS 600 600 L75QS600 L75QS600.X 1 Pc/ Box 07945823590
L75QS 700 700 L75QS700 L75QS700.X 1 Pc/ Box 07945823591
L75QS 800 800 L75QS800 L75QS800.X 1 Pc/ Box 07945823592
Ordering Information
Electrical Specifi cations
CATALOG
NUMBER
AMPERAGE
RATING
VOLTAGE
RATING
INTERRUPT
RATING MELTING
(PRE-ARC)
I2T (A2s)
TOTAL
CLEARING
I2T (A2s)
WATTS LOSS
AT 80 % RATED
CURRENT
WATTS LOSS
AT 100 % RATED
CURRENT
DC DC 50 KA @ 750 V DC
(W) (W)
L75QS035 35 750 50 kA 129 406 5 8
L75QS040 40 750 50 kA 153 549 6 9
L75QS050 50 750 50 kA 196 776 6 12
L75QS060 60 750 50 kA 269 895 9 15
L75QS070 70 750 50 kA 359 1,399 10 20
L75QS080 80 750 50 kA 452 1,841 12 22
L75QS090 90 750 50 kA 625 2,498 13 25
L75QS100 100 750 50 kA 966 3,053 15 30
L75QS125 125 750 50 kA 2,208 7,069 13 24
L75QS150 150 750 50 kA 3,026 10,401 17 32
L75QS175 175 750 50 kA 4,216 14,786 20 38
L75QS200 200 750 50 kA 5,529 20,433 22 42
L75QS225 225 750 50 kA 9,226 27,520 22 40
L75QS250 250 750 50 kA 10,999 34,291 27 46
L75QS300 300 750 50 kA 16,296 49,297 31 57
L75QS350 350 750 50 kA 24,778 70,696 35 67
L75QS400 400 750 50 kA 34,225 102,567 41 79
L75QS450 450 750 50 kA 38,946 119,606 45 81
L75QS500 500 750 50 kA 42,747 132,252 56 112
L75QS600 600 750 50 kA 67,363 189,333 67 138
L75QS700 700 750 50 kA 99,387 302,425 72 138
L75QS800 800 750 50 kA 156,137 421,500 76 142
POWR-SPEED® Fuses
Littelfuse.com/powr-speed
© 2019 Littelfuse, Inc.
17 of 52
L75QS SERIES HIGH-SPEED ROUND BODY
;._J
LQL ‘
$+
LA
Hid
+7 3w
+7 {V
LEA-Li—
% litleltuse'
Littelfuse.com/L75QS
© 2019 Littelfuse, Inc.
Rev: 1-B-073119
3 of 13
POWR-SPEED® Fuse
L75QS SERIES HIGH-SPEED ROUND BODY
Dimensions
Millimeters [inches]
Document Number: OL-L75QS000
Stud Size: M8 (5/16”)
Recommended Torque: 15 Nm (132.76 in-lb)
Stud Size: M8 (5/16”)
Recommended Torque: 15 Nm (132.76 in-lb)
Stud Size: M8 (5/16”)
Recommended Torque: 15 Nm (132.76 in-lb)
Stud Size: M 1 2 ( ½ ” )
Recommended Torque: 54 Nm (477.94 in-lb)
Stud Size: M12 (1/2”)
Recommended Torque: 54 Nm (477.94 in-lb)
CHICAGO, ILLINOIS 60631
3RD ANGLE
PROJECTION
BOL-L75QS000
Littelfuse
®
REVISION
DRWG NO.
TITLE
C
DRWDATE
GRAMS/PIECE
FINISH GOOD WT
MYORK4/5/2018
HSINIFCEPS LTAM
UNLESS OTHERWISE SPECIFIED, DIMENSIONS ARE IN MILLIMETERS, DIMENSIONS IN
BRACKETS [ ] ARE INCHES DIMENSIONING AND DO NOT INCLUDE PLATIN G. TOLERANCING
TO BE INTERPRETED IN ACCORDANCE WITH ANSI Y14.5M-1994
DENOTES CRITICAL CHARACTERISTICS.
DENOTES CPK DIMENSIONS, -MINIMUM CPK VALUE
DENOTES A CHARACTERISTIC THAT PROVIDES AN INDICATION
OF PROCESS PERFORMANCE. PROCEDURE FOR MEASUREMENT
AND TRACKING TO BE DEFINED IN
LITTELFUSE INSPECTION INSTRUCTIONS.
DENOTES CP DIMENSIONS, -MINIMUM CP VALUE
MUST BE WITHIN THE DIMENSIONAL LIMITATIONS
SHOWN ON DRAWING AND INITIALLY LOCATED TO
ALLOW FOR MAXIMUM TOOL LIFE.
CPK
CP
SHEET 1 OF 1
SCALE
L75QS SERIES OUTLINE
NTS
REVISION
REVDATE DESCRIPTION
A4/25/18519200GCP - RELEASE MRY
BYRM SECNARELOT EDALB DDA - D/PCE65502591/52/3
111.13 1.59
4.375 0.063
[]
95.24 1.59
3.749 0.063
[]
84.12 1.59
3.312 0.063
[]
73.03
[2.875]
17.02 0.89
0.670 0.035
[]
8.73
[0.344]
25.40 0.381
1.000 0.015
[]
3.18 0.15
0.125 0.006
[]
72.24
[2.844]
73.03
[2.875]
30.94 0.381
1.218 0.015
[]
38.10 0.89
1.500 0.035
[]
10.41
[0.410]
129.39 1.59
5.094 0.063
[]
108.72 1.59
4.280 0.063
[]
86.76 1.59
3.416 0.063
[]
6.35 0.15
0.250 0.006
[]
50.80 0.381
2.000 0.015
[] 50.80 0.381
2.000 0.015
[]
6.35 0.15
0.250 0.006
[]
63.50 0.381
2.500 0.015
[]
9.53 0.15
0.375 0.006
[]
38.10 0.89
1.500 0.035
[]
13.46
[0.530]
180.09 1.59
7.090 0.063
[]
156.47 1.59
6.160 0.063
[]
89.67 1.59
3.530 0.063
[] 72.24
[2.844]
50.80 0.89
2.000 0.035
[]
13.46
[0.530]
173
.05 1.59
6.813 0.063
[]
142.83 1.59
5.623 0.063
[]
103.20 1.59
4.063 0.063
[]
72.24
[2.844]
35–100A
125–200A 225–400A
450–600A
700–800A
129.16 1.59
5.085 0.063
[]
106.30 1.59
4.185 0.063
[]
88.77 1.59
3.495 0.063
[]
10.41
[0.410]
22.73 0.89
0.895 0.035
[]
4.75 0.15
0.187 0.006
[]
14.29
[0.563]
33.27
[1.310]
46.86
[1.845]
21.39
[0.842]
19.18
[0.755]
CHICAGO, ILLINOIS 60631
3RD ANGLE
PROJECTION
BOL-L75QS000
Littelfuse
®
REVISION
DRWG NO.
TITLE
C
DRWDATE
GRAMS/PIECE
FINISH GOOD WT
MYORK4/5/2018
HSINIFCEPS LTAM
UNLESS OTHERWISE SPECIFIED, DIMENSIONS ARE IN MILLIMETERS, DIMENSIONS IN
BRACKETS [ ] ARE INCHES DIMENSIONING AND DO NOT INCLUDE PLATIN G. TOLERANCING
TO BE INTERPRETED IN ACCORDANCE WITH ANSI Y14.5M-1994
DENOTES CRITICAL CHARACTERISTICS.
DENOTES CPK DIMENSIONS, -MINIMUM CPK VALUE
DENOTES A CHARACTERISTIC THAT PROVIDES AN INDICATION
OF PROCESS PERFORMANCE. PROCEDURE FOR MEASUREMENT
AND TRACKING TO BE DEFINED IN
LITTELFUSE INSPECTION INSTRUCTIONS.
DENOTES CP DIMENSIONS, -MINIMUM CP VALUE
MUST BE WITHIN THE DIMENSIONAL LIMITATIONS
SHOWN ON DRAWING AND INITIALLY LOCATED TO
ALLOW FOR MAXIMUM TOOL LIFE.
CPK
CP
SHEET 1 OF 1
SCALE
L75QS SERIES OUTLINE
NTS
REVISION
REVDATE DESCRIPTION
A4/25/18519200GCP - RELEASE MRY
BYRM SECNARELOT EDALB DDA - D/PCE65502591/52/3
11
1.13 1.59
4.375 0.063
[]
95.24 1.59
3.749 0.063
[]
84.12 1.59
3.312 0.063
[]
73.03
[2.875]
17.02 0.89
0.670 0.035
[]
8.73
[0.344]
25.40 0.381
1.000 0.015
[]
3.18 0.15
0.125 0.006
[]
72.24
[2.844]
73.03
[2.875]
30.94 0.381
1.218 0.015
[]
38.10 0.89
1.500 0.035
[]
10.41
[0.410]
129.39 1.59
5.094 0.063
[]
108.72 1.59
4.280 0.063
[]
86.76 1.59
3.416 0.063
[]
6.35 0.15
0.250 0.006
[]
50.80 0.381
2.000 0.015
[] 50.80 0.381
2.000 0.015
[]
6.35 0.15
0.250 0.006
[]
63.50 0.381
2.500 0.015
[]
9.53 0.15
0.375 0.006
[]
38.10 0.89
1.500 0.035
[]
13.46
[0.530]
180.09 1.59
7.090 0.063
[]
156.47 1.59
6.160 0.063
[]
89.67 1.59
3.530 0.063
[] 72.24
[2.844]
50.80 0.89
2.000 0.035
[]
13.46
[0.530]
173.05 1.59
6.813 0.063
[]
142.83 1.59
5.623 0.063
[]
103.20 1.59
4.063 0.063
[]
72.24
[2.844]
35–100A
125–200A 225–400A
450–600A 700–800A
129.16 1.59
5.085 0.063
[]
106.30 1.59
4.185 0.063
[]
88.77 1.59
3.495 0.063
[]
10.41
[0.410]
22.73 0.89
0.895 0.035
[]
4.75 0.15
0.187 0.006
[]
14.29
[0.563]
33.27
[1.310]
46.86
[1.845]
21.39
[0.842]
19.18
[0.755]
CHICAGO, ILLINOIS 60631
3RD ANGLE
PROJECTION
BOL-L75QS000
Littelfuse
®
REVISION
DRWG NO.
TITLE
C
DRWDATE
GRAMS/PIECE
FINISH GOOD WT
MYORK4/5/2018
HSINIFCEPS LTAM
UNLESS OTHERWISE SPECIFIED, DIMENSIONS ARE IN MILLIMETERS, DIMENSIONS IN
BRACKETS [ ] ARE INCHES DIMENSIONING AND DO NOT INCLUDE PLATIN G. TOLERANCING
TO BE INTERPRETED IN ACCORDANCE WITH ANSI Y14.5M-1994
DENOTES CRITICAL CHARACTERISTICS.
DENOTES CPK DIMENSIONS, -MINIMUM CPK VALUE
DENOTES A CHARACTERISTIC THAT PROVIDES AN INDICATION
OF PROCESS PERFORMANCE. PROCEDURE FOR MEASUREMENT
AND TRACKING TO BE DEFINED IN
LITTELFUSE INSPECTION INSTRUCTIONS.
DENOTES CP DIMENSIONS, -MINIMUM CP VALUE
MUST BE WITHIN THE DIMENSIONAL LIMITATIONS
SHOWN ON DRAWING AND INITIALLY LOCATED TO
ALLOW FOR MAXIMUM TOOL LIFE.
CPK
CP
SHEET 1 OF 1
SCALE
L75QS SERIES OUTLINE
NTS
REVISION
REVDATE DESCRIPTION
A4/25/18519200GCP - RELEASE MRY
BYRM SECNARELOT EDALB DDA - D/PCE65502591/52/3
111.13 1.59
4.375 0.063
[]
95.24 1.59
3.749 0.063
[]
84.12 1.59
3.312 0.063
[]
73.03
[2.875]
17.02 0.89
0.670 0.035
[]
8.73
[0.344]
25.40 0.381
1.000 0.015
[]
3.18 0.15
0.125 0.006
[]
72.24
[2.844]
73.03
[2.875]
30.94 0.381
1.218 0.015
[]
38.10 0.89
1.500 0.035
[]
10.41
[0.410]
129.39 1.59
5.094 0.063
[]
108.72 1.59
4.280 0.063
[]
86.76 1.59
3.416 0.063
[]
6.35 0.15
0.250 0.006
[]
50.80 0.381
2.000 0.015
[] 50.80 0.381
2.000 0.015
[]
6.35 0.15
0.250 0.006
[]
63.50 0.381
2.500 0.015
[]
9.53 0.15
0.375 0.006
[]
38.10 0.89
1.500 0.035
[]
13.46
[0.530]
180.09 1.59
7.090 0.063
[]
156.47 1.59
6.160 0.063
[]
89.67 1.59
3.530 0.063
[] 72.24
[2.844]
50.80 0.89
2.000 0.035
[]
13.46
[0.530]
173.05 1.59
6.813 0.063
[]
142.83 1.59
5.623 0.063
[]
103.20 1.59
4.063 0.063
[]
72.24
[2.844]
35–100A
125–200A
225–400A
450–600A 700–800A
129.16 1.59
5.085 0.063
[]
106.30 1.59
4.185 0.063
[]
88.77 1.59
3.495 0.063
[]
10.41
[0.410]
22.73 0.89
0.895 0.035
[]
4.75 0.15
0.187 0.006
[]
14.29
[0.563] 33.27
[1.310]
46.86
[1.845]
21.39
[0.842]
19.18
[0.755]
CHICAGO, ILLINOIS 60631
3RD ANGLE
PROJECTION
BOL-L75QS000
Littelfuse
®
REVISION
DRWG NO.
TITLE
C
DRWDATE
GRAMS/PIECE
FINISH GOOD WT
MYORK4/5/2018
HSINIFCEPS LTAM
UNLESS OTHERWISE SPECIFIED, DIMENSIONS ARE IN MILLIMETERS, DIMENSIONS IN
BRACKETS [ ] ARE INCHES DIMENSIONING AND DO NOT INCLUDE PLATIN G. TOLERANCING
TO BE INTERPRETED IN ACCORDANCE WITH ANSI Y14.5M-1994
DENOTES CRITICAL CHARACTERISTICS.
DENOTES CPK DIMENSIONS, -MINIMUM CPK VALUE
DENOTES A CHARACTERISTIC THAT PROVIDES AN INDICATION
OF PROCESS PERFORMANCE. PROCEDURE FOR MEASUREMENT
AND TRACKING TO BE DEFINED IN
LITTELFUSE INSPECTION INSTRUCTIONS.
DENOTES CP DIMENSIONS, -MINIMUM CP VALUE
MUST BE WITHIN THE DIMENSIONAL LIMITATIONS
SHOWN ON DRAWING AND INITIALLY LOCATED TO
ALLOW FOR MAXIMUM TOOL LIFE.
CPK
CP
SHEET 1 OF 1
SCALE
L75QS SERIES OUTLINE
NTS
REVISION
REVDATE DESCRIPTION
A4/25/18519200GCP - RELEASE MRY
BYRM SECNARELOT EDALB DDA - D/PCE65502591/52/3
111.13 1.59
4.375 0.063
[]
95.24 1.59
3.749 0.063
[]
84.12 1.59
3.312 0.063
[]
73.03
[2.875]
17.02 0.89
0.670 0.035
[]
8.73
[0.344]
25.40 0.381
1.000 0.015
[]
3.18 0.15
0.125 0.006
[]
72.24
[2.844]
73.03
[2.875]
30.94 0.381
1.218 0.015
[]
38.10 0.89
1.500 0.035
[]
10.41
[0.410]
129.39
1.59
5.094 0.063
[]
108.72 1.59
4.280 0.063
[]
86.76 1.59
3.416 0.063
[]
6.35 0.15
0.250 0.006
[]
50.80 0.381
2.000 0.015
[]
50.80 0.381
2.000 0.015
[]
6.35 0.15
0.250 0.006
[]
63.50 0.381
2.500 0.015
[]
9.53 0.15
0.375 0.006
[]
38.10 0.89
1.500 0.035
[]
13.46
[0.530]
180.09 1.59
7.090
0.063
[]
156.47 1.59
6.160 0.063
[]
89.67 1.59
3.530 0.063
[] 72.24
[2.844]
50.80 0.89
2.000 0.035
[]
13.46
[0.530]
173.05 1.59
6.813 0.063
[]
142.83 1.59
5.623 0.063
[]
103.20 1.59
4.063 0.063
[]
72.24
[2.844]
35–100A
125–200A
225–400A
450–600A 700–800A
129.16 1.59
5.085 0.063
[]
106.30 1.59
4.185 0.063
[]
88.77 1.59
3.495 0.063
[]
10.41
[0.410]
22.73 0.89
0.895 0.035
[]
4.75 0.15
0.187 0.006
[]
14.29
[0.563] 33.27
[1.310]
46.86
[1.845]
21.39
[0.842]
19.18
[0.755]
CHICAGO, ILLINOIS 60631
3RD ANGLE
PROJECTION
BOL-L75QS000
Littelfuse
®
REVISION
DRWG NO.
TITLE
C
DRWDATE
GRAMS/PIECE
FINISH GOOD WT
MYORK4/5/2018
HSINIFCEPS LTAM
UNLESS OTHERWISE SPECIFIED, DIMENSIONS ARE IN MILLIMETERS, DIMENSIONS IN
BRACKETS [ ] ARE INCHES DIMENSIONING AND DO NOT INCLUDE PLATIN G. TOLERANCING
TO BE INTERPRETED IN ACCORDANCE WITH ANSI Y14.5M-1994
DENOTES CRITICAL CHARACTERISTICS.
DENOTES CPK DIMENSIONS, -MINIMUM CPK VALUE
DENOTES A CHARACTERISTIC THAT PROVIDES AN INDICATION
OF PROCESS PERFORMANCE. PROCEDURE FOR MEASUREMENT
AND TRACKING TO BE DEFINED IN
LITTELFUSE INSPECTION INSTRUCTIONS.
DENOTES CP DIMENSIONS, -MINIMUM CP VALUE
MUST BE WITHIN THE DIMENSIONAL LIMITATIONS
SHOWN ON DRAWING AND INITIALLY LOCATED TO
ALLOW FOR MAXIMUM TOOL LIFE.
CPK
CP
SHEET 1 OF 1
SCALE
L75QS SERIES OUTLINE
NTS
REVISION
REVDATE DESCRIPTION
A4/25/18519200GCP - RELEASE MRY
BYRM SECNARELOT EDALB DDA - D/PCE65502591/52/3
111.13 1.59
4.375 0.063
[]
95.24 1.59
3.749 0.063
[]
84.12 1.59
3.312 0.063
[]
73.03
[2.875]
17.02 0.89
0.670 0.035
[]
8.73
[0.344]
25.40 0.381
1.000 0.015
[]
3.18 0.15
0.125 0.006
[]
72.24
[2.844]
73.03
[2.875]
30.94 0.381
1.218 0.015
[]
38.10 0.89
1.500 0.035
[]
10.41
[0.410]
129.39 1.59
5.094 0.063
[]
108.72 1.59
4.280 0.063
[]
86.76 1.59
3.416 0.063
[]
6.35 0.15
0.250 0.006
[]
50.80 0.381
2.000 0.015
[]
50.80 0.381
2.000 0.015
[]
6.35 0.15
0.250 0.006
[]
63.50 0.381
2.500 0.015
[]
9.53 0.15
0.375 0.006
[]
38.10 0.89
1.500 0.035
[]
13.46
[0.530]
180.09 1.59
7.090 0.063
[]
156.47 1.59
6.160 0.063
[]
89.67 1.59
3.530 0.063
[] 72.24
[2.844]
50.80 0.89
2.000 0.035
[]
13.46
[0.530]
173.05 1.59
6.813 0.063
[]
142.83 1.59
5.623 0.063
[]
103.20 1.59
4.063 0.063
[]
72.24
[2.844]
35–100A
125–200A 225–400A
450–600A
700–800A
129.16 1.59
5.085 0.063
[]
106.30 1.59
4.185 0.063
[]
88.77 1.59
3.495 0.063
[]
10.41
[0.410]
22.73 0.89
0.895 0.035
[]
4.75 0.15
0.187 0.006
[]
14.29
[0.563] 33.27
[1.310]
46.86
[1.845]
21.39
[0.842]
19.18
[0.755]
POWR-SPEED® Fuses
Littelfuse.com/powr-speed
© 2019 Littelfuse, Inc.
18 of 52
L75QS SERIES HIGH-SPEED ROUND BODY
chsCE
% litleltuse'
bperluseADphad \ Answeumhvemd
Littelfuse.com/L70QS
© 2019 Littelfuse, Inc.
Rev: 073119
1 of 11
POWR-SPEED® Fuse
L70QS SERIES HIGH-SPEED ROUND BODY
Specifi cations
Voltage Rating Ac: 700 V
Dc: 700 V
Amperage Rating 35–800 A
Interrupting Rating Ac: 200 kA
Dc: 50 kA
Time Constant 10 ms
Material Body: melamine
Caps: copper alloy (silver plated)
Approvals UL Recognized (E71611)
cURus (E71611)
Environmental RoHS Compliant, REACH
Country of Origin Mexico
Operating Temperature -55 °C to +125 °C
Storage Temperature Up to 35 °C with relative humidity <65 %
Description
The L70QS series is a next generation high-speed fuse
for the protection of power semiconductor devices and
is designed in the traditional North American bolted style
package.
L70QS series high-speed fuses are extremely current
limiting and are used to protect power converters, drives
and control circuit applications. Designed with lower I2t
performance characteristics, these fuses provide balanced
performance to extend longevity while lowering potentially
damaging heat energy to the devices being protected.
In addition L70QS series fuses have been designed with a
universal mounting option to meet customer requirements
for installation into a variety of application configurations
Littelfuse POWR-SPEED products offer optimized
circuit protection at the extremely fast speed required to
protect modern day, sensitive, high-power semiconductor
devices. Such products are commonly found in various
industries including pulp and paper industries, cranes and
heavy-lifting equipment, processing industries, wastewater
treatment plants and large factories and MRO facilities.
Features
Compliance with US and Canadian requirements
Traditional North American bolted style dimensions
Class aR performance
Direct bus-bar mount or stud mount design
Halogen free, RoHS and REACH Compliant
Applications
Power converters (inverters, rectifi ers)
Power supplies
UPS
Variable speed drives
Control circuits
Soft starters
Recommended Fuse Blocks
LSCR001 (35–100 A)
LSCR002 (125–800 A)
700 V ac/dc • Very Fast Acting • 35–800 A
Part Numbering System
L70 QS 700 X
Body Type
Ampere Code
Series
Package Quantity
X = 1 (225–800 A)
V = 5 (35–200 A)
SERIES BODY
TYPE
AMPERE
CODE
PACKAGE
QUANTITY
CATALOG
NUMBER
ORDERING
NUMBER
L70 QS 700 1L70QS700 L70QS700.X
Web Resources
Download technical documents: Littelfuse.com/L70QS
Note: high-speed fuses are designed for fi xed installations. They are not
intended for use in moving vehicle applications.
HF
POWR-SPEED® Fuses
Littelfuse.com/powr-speed
© 2019 Littelfuse, Inc.
19 of 52
L70QS SERIES HIGH-SPEED ROUND BODY
tleltuse‘
u \ Am,
Littelfuse.com/L70QS
© 2019 Littelfuse, Inc.
Rev: 073119
2 of 11
POWR-SPEED® Fuse
L70QS SERIES HIGH-SPEED ROUND BODY
SERIES AMPERAGE
RATING
AMPERE
CODE
CATALOG
NUMBER
ORDERING
NUMBER
PACK
QUANTITY UPC
L70QS 35 035 L70QS035 L70QS035.V 5 Pcs/ Box 07945886015
L70QS 40 040 L70QS040 L70QS040.V 5 Pcs/ Box 07945886016
L70QS 50 050 L70QS050 L70QS050.V 5 Pcs/ Box 07945886017
L70QS 60 060 L70QS060 L70QS060.V 5 Pcs/ Box 07945886018
L70QS 70 070 L70QS070 L70QS070.V 5 Pcs/ Box 07945886019
L70QS 80 080 L70QS080 L70QS080.V 5 Pcs/ Box 07945886020
L70QS 90 090 L70QS090 L70QS090.V 5 Pcs/ Box 07945886021
L70QS 100 100 L70QS100 L70QS100.V 5 Pcs/ Box 07945886022
L70QS 125 125 L70QS125 L70QS125.V 5 Pcs/ Box 07945886023
L70QS 150 150 L70QS150 L70QS150.V 5 Pcs/ Box 07945886024
L70QS 175 175 L70QS175 L70QS175.V 5 Pcs/ Box 07945886025
L70QS 200 200 L70QS200 L70QS200.V 5 Pcs/ Box 07945886026
L70QS 225 225 L70QS225 L70QS225.X 1 Pc/ Box 07945886027
L70QS 250 250 L70QS250 L70QS250.X 1 Pc/ Box 07945886028
L70QS 300 300 L70QS300 L70QS300.X 1 Pc/ Box 07945886029
L70QS 350 350 L70QS350 L70QS350.X 1 Pc/ Box 07945886030
L70QS 400 400 L70QS400 L70QS400.X 1 Pc/ Box 07945886031
L70QS 450 450 L70QS450 L70QS450.X 1 Pc/ Box 07945886032
L70QS 500 500 L70QS500 L70QS500.X 1 Pc/ Box 07945886033
L70QS 600 600 L70QS600 L70QS600.X 1 Pc/ Box 07945886034
L70QS 700 700 L70QS700 L70QS700.X 1 Pc/ Box 07945886035
L70QS 800 800 L70QS800 L70QS800.X 1 Pc/ Box 07945886036
Ordering Information
Electrical Specifi cations
CATALOG
NUMBER
AMPERAGE
RATING
VOLTAGE
RATING
INTERRUPT
RATING MELTING
(PRE-ARC)
I
2
T (A
2
s)
TOTAL
CLEARING
I
2
T (A
2
s)
TOTAL
CLEARING
I
2
T (A
2
s)
WATTS LOSS
AT 80 % RATED
CURRENT
WATTS LOSS
AT 100 % RATED
CURRENT
AC DC AC DC 200 kA @ 700 V AC 50 kA @ 700 V DC (W) (W)
L70QS035 35 700 700 200 kA 50 kA 129 332 308 5 8
L70QS040 40 700 700 200 kA 50 kA 153 599 416 6 9
L70QS050 50 700 700 200 kA 50 kA 196 711 588 612
L70QS060 60 700 700 200 kA 50 kA 269 1,233 678 915
L70QS070 70 700 700 200 kA 50 kA 359 1,575 1,075 10 20
L70QS080 80 700 700 200 kA 50 kA 452 2,755 1,415 12 22
L70QS090 90 700 700 200 kA 50 kA 625 3,365 1,920 13 25
L70QS100 100 700 700 200 kA 50 kA 966 3,747 2,347 15 30
L70QS125 125 700 700 200 kA 50 kA 2,208 8,795 5,570 13 24
L70QS150 150 700 700 200 kA 50 kA 3,026 13,650 8,195 17 32
L70QS175 175 700 700 200 kA 50 kA 4,219 19,550 11,650 20 38
L70QS200 200 700 700 200 kA 50 kA 5,529 22,067 16,100 22 42
L70QS225 225 700 700 200 kA 50 kA 9,226 34,900 25,400 22 40
L70QS250 250 700 700 200 kA 50 kA 10,999 43,750 31,650 27 46
L70QS300 300 700 700 200 kA 50 kA 16,296 64,400 45,500 31 57
L70QS350 350 700 700 200 kA 50 kA 24,778 91,500 65,250 35 67
L70QS400 400 700 700 200 kA 50 kA 34,225 110,667 94,666 41 79
L70QS450 450 700 700 200 kA 50 kA 38,946 145,500 113,500 45 81
L70QS500 500 700 700 200 kA 50 kA 42,747 173,000 125,500 56 112
L70QS600 600 700 700 200 kA 50 kA 67,363 220,333 179,667 67 138
L70QS700 700 700 700 200 kA 50 kA 99,387 368,000 298,000 72 138
L70QS800 800 700 700 200 kA 50 kA 156,137 466,333 415,333 76 142
POWR-SPEED® Fuses
Littelfuse.com/powr-speed
© 2019 Littelfuse, Inc.
20 of 52
L70QS SERIES HIGH-SPEED ROUND BODY
.71.
+¢ mmw
, 4T1.
71.
HE
ml“ xjm i
+, + 1
% litleltuse'
Littelfuse.com/L70QS
© 2019 Littelfuse, Inc.
Rev: 073119
2 of 11
POWR-SPEED® Fuse
L70QS SERIES HIGH-SPEED ROUND BODY
SERIES AMPERAGE
RATING
AMPERE
CODE
CATALOG
NUMBER
ORDERING
NUMBER
PACK
QUANTITY UPC
L70QS 35 035 L70QS035 L70QS035.V 5 Pcs/ Box 07945886015
L70QS 40 040 L70QS040 L70QS040.V 5 Pcs/ Box 07945886016
L70QS 50 050 L70QS050 L70QS050.V 5 Pcs/ Box 07945886017
L70QS 60 060 L70QS060 L70QS060.V 5 Pcs/ Box 07945886018
L70QS 70 070 L70QS070 L70QS070.V 5 Pcs/ Box 07945886019
L70QS 80 080 L70QS080 L70QS080.V 5 Pcs/ Box 07945886020
L70QS 90 090 L70QS090 L70QS090.V 5 Pcs/ Box 07945886021
L70QS 100 100 L70QS100 L70QS100.V 5 Pcs/ Box 07945886022
L70QS 125 125 L70QS125 L70QS125.V 5 Pcs/ Box 07945886023
L70QS 150 150 L70QS150 L70QS150.V 5 Pcs/ Box 07945886024
L70QS 175 175 L70QS175 L70QS175.V 5 Pcs/ Box 07945886025
L70QS 200 200 L70QS200 L70QS200.V 5 Pcs/ Box 07945886026
L70QS 225 225 L70QS225 L70QS225.X 1 Pc/ Box 07945886027
L70QS 250 250 L70QS250 L70QS250.X 1 Pc/ Box 07945886028
L70QS 300 300 L70QS300 L70QS300.X 1 Pc/ Box 07945886029
L70QS 350 350 L70QS350 L70QS350.X 1 Pc/ Box 07945886030
L70QS 400 400 L70QS400 L70QS400.X 1 Pc/ Box 07945886031
L70QS 450 450 L70QS450 L70QS450.X 1 Pc/ Box 07945886032
L70QS 500 500 L70QS500 L70QS500.X 1 Pc/ Box 07945886033
L70QS 600 600 L70QS600 L70QS600.X 1 Pc/ Box 07945886034
L70QS 700 700 L70QS700 L70QS700.X 1 Pc/ Box 07945886035
L70QS 800 800 L70QS800 L70QS800.X 1 Pc/ Box 07945886036
Ordering Information
Electrical Specifi cations
CATALOG
NUMBER
AMPERAGE
RATING
VOLTAGE
RATING
INTERRUPT
RATING MELTING
(PRE-ARC)
I
2
T (A
2
s)
TOTAL
CLEARING
I
2
T (A
2
s)
TOTAL
CLEARING
I
2
T (A
2
s)
WATTS LOSS
AT 80 % RATED
CURRENT
WATTS LOSS
AT 100 % RATED
CURRENT
AC DC AC DC 200 kA @ 700 V AC 50 kA @ 700 V DC (W) (W)
L70QS035 35 700 700 200 kA 50 kA 129 332 308 5 8
L70QS040 40 700 700 200 kA 50 kA 153 599 416 6 9
L70QS050 50 700 700 200 kA 50 kA 196 711 588 612
L70QS060 60 700 700 200 kA 50 kA 269 1,233 678 915
L70QS070 70 700 700 200 kA 50 kA 359 1,575 1,075 10 20
L70QS080 80 700 700 200 kA 50 kA 452 2,755 1,415 12 22
L70QS090 90 700 700 200 kA 50 kA 625 3,365 1,920 13 25
L70QS100 100 700 700 200 kA 50 kA 966 3,747 2,347 15 30
L70QS125 125 700 700 200 kA 50 kA 2,208 8,795 5,570 13 24
L70QS150 150 700 700 200 kA 50 kA 3,026 13,650 8,195 17 32
L70QS175 175 700 700 200 kA 50 kA 4,219 19,550 11,650 20 38
L70QS200 200 700 700 200 kA 50 kA 5,529 22,067 16,100 22 42
L70QS225 225 700 700 200 kA 50 kA 9,226 34,900 25,400 22 40
L70QS250 250 700 700 200 kA 50 kA 10,999 43,750 31,650 27 46
L70QS300 300 700 700 200 kA 50 kA 16,296 64,400 45,500 31 57
L70QS350 350 700 700 200 kA 50 kA 24,778 91,500 65,250 35 67
L70QS400 400 700 700 200 kA 50 kA 34,225 110,667 94,666 41 79
L70QS450 450 700 700 200 kA 50 kA 38,946 145,500 113,500 45 81
L70QS500 500 700 700 200 kA 50 kA 42,747 173,000 125,500 56 112
L70QS600 600 700 700 200 kA 50 kA 67,363 220,333 179,667 67 138
L70QS700 700 700 700 200 kA 50 kA 99,387 368,000 298,000 72 138
L70QS800 800 700 700 200 kA 50 kA 156,137 466,333 415,333 76 142
Littelfuse.com/L70QS
© 2019 Littelfuse, Inc.
Rev: 073119
3 of 11
POWR-SPEED® Fuse
L70QS SERIES HIGH-SPEED ROUND BODY
Dimensions
Millimeters [inches]
Stud Size: M8 (5/16”)
Recommended Torque: 15 Nm (132.76 in-lb)
Stud Size: M8 (5/16”)
Recommended Torque: 15 Nm (132.76 in-lb)
Stud Size: M8 (5/16”)
Recommended Torque: 15 Nm (132.76 in-lb)
Stud Size: M12 (1/2”)
Recommended Torque: 54 Nm (477.94 in-lb)
Stud Size: M12 (1/2”)
Recommended Torque: 54 Nm (477.94 in-lb)
Document Number: OL-L70QS000
3RD ANGLE
PROJECTION
EOL-L70QS000
Littelfuse
®
REVISION
DRWG NO.
TITLE
C
DRWDATE
GRAMS/PIECE
FINISH GOOD WT
MYORK9/3/2015
MATL SPEC FINISH
UNLESS OTHERWISE SPECIFIED, DIMENSIONS ARE IN MILLIMETERS, DIMENSIONS IN
BRACKETS [ ] ARE INCHES DIMENSIONING AND DO NOT INCLUDE PLATING. TOLERANCING
TO BE INTERPRETED IN ACCORDANCE WITH ANSI Y14.5M-1994
DENOTES CRITICAL CHARACTERISTICS.
DENOTES CPK DIMENSIONS, -MINIMUM CPK VALUE
DENOTES A CHARACTERISTIC THAT PROVIDES AN INDICATION
OF PROCESS PERFORMANCE. PROCEDURE FOR MEASUREMENT
AND TRACKING TO BE DEFINED IN
LITTELFUSE INSPECTION INSTRUCTIONS.
DENOTES CP DIMENSIONS, -MINIMUM CP VALUE
MUST BE WITHIN THE DIMENSIONAL LIMITATIONS
SHOWN ON DRAWING AND INITIALLY LOCATED TO
ALLOW FOR MAXIMUM TOOL LIFE.
CPK
CP
SHEET 1 OF 1
SCALE
L70QS SERIES OUTLINE
NTS
REVISION
REVDATE DESCRIPTION
A3/23/16515693GCP - RELEASE MRY
B9/6/16 516327ECP/D - CHG DATA SHEET REVISION MRY
C6/6/17 517424ECP/D - REMOVE DATA SHEET REVISION MRY
D9/5/17 517727ECP/D - ADD DIMENSION TOLERANCES MRY
E3/25/19 520556ECP/D - ADD BLADE TOLERANCES MRY
11
1.13 ±1.59
4.375 ±0.063
[]
95.24±1.59
3.749 ±0.063
[]
84.12±1.59
3.312±0.063
[]
73.03
[2.875]
17.02±0.89
0.670 ±0.035
[]
8.73
[0.344]
Ø25.40 ±0.381
1.000±0.015
[]
3.18 ±0.15
0.125±0.006
[]
72.24
[2.844]
73.03
[2.875]
30.94 ±Ø0.381
1.218 ±0.015
[]
38.10 ±0.89
1.500 ±0.035
[]
10.41
[0.410]
129.39 ±1.59
5.094±0.063
[]
108.72±1.59
4.280 ±0.063
[]
86.76±1.59
3.416 ±0.063
[]
6.35 ±0.15
0.250±0.006
[]
50.80 ±Ø0.381
2.000 ±0.015
[] 50.80 ±Ø0.381
2.000 ±0.015
[]
6.35 ±0.15
0.250±0.006
[]
63.50 ±Ø0.381
2.500 ±0.015
[]
9.53 ±0.15
0.375 ±0.006
[]
38.10 ±0.89
1.500 ±0.035
[]
13.46
[0.530]
180.09 ±1.59
7.090 ±0.063
[]
156.47±1.59
6.160±0.063
[]
89.67 ±1.59
3.530±0.063
[] 72.24
[2.844]
50.80 ±0.89
2.000±0.035
[]
13.46
[0.530]
173.05±1.59
6.813 ±0.063
[]
142.83 ±1.59
5.623 ±0.063
[]
103.20 ±1.59
4.063±0.063
[]
72.24
[2.844]
35–100A
125–200A 225–400A
450–600A 700–800A
129.16 ±1.59
5.085 ±0.063
[]
106.30 ±1.59
4.185 ±0.063
[]
88.77 ±1.59
3.495 ±0.063
[]
10.41
[0.410]
22.73 ±0.89
0.895 ±0.035
[]
4.75 ±0.15
0.187±0.006
[]
14.29
[0.563]
33.27
[1.310]
46.86
[1.845]
21.39
[0.842]
19.18
[0.755]
3RD ANGLE
PROJECTION
EOL-L70QS000
Littelfuse
®
REVISION
DRWG NO.
TITLE
C
DRWDATE
GRAMS/PIECE
FINISH GOOD WT
MYORK9/3/2015
MATL SPEC FINISH
UNLESS OTHERWISE SPECIFIED, DIMENSIONS ARE IN MILLIMETERS, DIMENSIONS IN
BRACKETS [ ] ARE INCHES DIMENSIONING AND DO NOT INCLUDE PLATING. TOLERANCING
TO BE INTERPRETED IN ACCORDANCE WITH ANSI Y14.5M-1994
DENOTES CRITICAL CHARACTERISTICS.
DENOTES CPK DIMENSIONS, -MINIMUM CPK VALUE
DENOTES A CHARACTERISTIC THAT PROVIDES AN INDICATION
OF PROCESS PERFORMANCE. PROCEDURE FOR MEASUREMENT
AND TRACKING TO BE DEFINED IN
LITTELFUSE INSPECTION INSTRUCTIONS.
DENOTES CP DIMENSIONS, -MINIMUM CP VALUE
MUST BE WITHIN THE DIMENSIONAL LIMITATIONS
SHOWN ON DRAWING AND INITIALLY LOCATED TO
ALLOW FOR MAXIMUM TOOL LIFE.
CPK
CP
SHEET 1 OF 1
SCALE
L70QS SERIES OUTLINE
NTS
REVISION
REVDATE DESCRIPTION
A3/23/16515693GCP - RELEASE MRY
B9/6/16 516327ECP/D - CHG DATA SHEET REVISION MRY
C6/6/17 517424ECP/D - REMOVE DATA SHEET REVISION MRY
D9/5/17 517727ECP/D - ADD DIMENSION TOLERANCES MRY
E3/25/19 520556ECP/D - ADD BLADE TOLERANCES MRY
111.13 ±1.59
4.375 ±0.063
[]
95.24±1.59
3.749 ±0.063
[]
84.12±1.59
3.312±0.063
[]
73.03
[2.875]
17.02±0.89
0.670 ±0.035
[]
8.73
[0.344]
Ø25.40 ±0.381
1.000±0.015
[]
3.18 ±0.15
0.125±0.006
[]
72.24
[2.844]
73.03
[2.875]
30.94 ±Ø0.381
1.218 ±0.015
[]
38.10 ±0.89
1.500 ±0.035
[]
10.41
[0.410]
129.39 ±1.59
5.094±0.063
[]
108.72±1.59
4.280 ±0.063
[]
86.76±1.59
3.416 ±0.063
[]
6.35 ±0.15
0.250±0.006
[]
50.80 ±Ø0.381
2.000 ±0.015
[] 50.80 ±Ø0.381
2.000 ±0.015
[]
6.35 ±0.15
0.250±0.006
[]
63.50 ±Ø0.381
2.500 ±0.015
[]
9.53 ±0.15
0.375 ±0.006
[]
38.10 ±0.89
1.500 ±0.035
[]
13.46
[0.530]
180.09 ±1.59
7.090 ±0.063
[]
156.47±1.59
6.160±0.063
[]
89.67 ±1.59
3.530±0.063
[] 72.24
[2.844]
50.80 ±0.89
2.000±0.035
[]
13.46
[0.530]
173.05±1.59
6.813 ±0.063
[]
142.83 ±1.59
5.623 ±0.063
[]
103.20 ±1.59
4.063±0.063
[]
72.24
[2.844]
35–100A
125–200A
225–400A
450–600A 700–800A
129.16 ±1.59
5.085 ±0.063
[]
106.30 ±1.59
4.185 ±0.063
[]
88.77 ±1.59
3.495 ±0.063
[]
10.41
[0.410]
22.73 ±0.89
0.895 ±0.035
[]
4.75 ±0.15
0.187±0.006
[]
14.29
[0.563] 33.27
[1.310]
46.86
[1.845]
21.39
[0.842]
19.18
[0.755]
3RD ANGLE
PROJECTION
EOL-L70QS000
Littelfuse
®
REVISION
DRWG NO.
TITLE
C
DRWDATE
GRAMS/PIECE
FINISH GOOD WT
MYORK9/3/2015
MATL SPEC FINISH
UNLESS OTHERWISE SPECIFIED, DIMENSIONS ARE IN MILLIMETERS, DIMENSIONS IN
BRACKETS [ ] ARE INCHES DIMENSIONING AND DO NOT INCLUDE PLATING. TOLERANCING
TO BE INTERPRETED IN ACCORDANCE WITH ANSI Y14.5M-1994
DENOTES CRITICAL CHARACTERISTICS.
DENOTES CPK DIMENSIONS, -MINIMUM CPK VALUE
DENOTES A CHARACTERISTIC THAT PROVIDES AN INDICATION
OF PROCESS PERFORMANCE. PROCEDURE FOR MEASUREMENT
AND TRACKING TO BE DEFINED IN
LITTELFUSE INSPECTION INSTRUCTIONS.
DENOTES CP DIMENSIONS, -MINIMUM CP VALUE
MUST BE WITHIN THE DIMENSIONAL LIMITATIONS
SHOWN ON DRAWING AND INITIALLY LOCATED TO
ALLOW FOR MAXIMUM TOOL LIFE.
CPK
CP
SHEET 1 OF 1
SCALE
L70QS SERIES OUTLINE
NTS
REVISION
REVDATE DESCRIPTION
A3/23/16515693GCP - RELEASE MRY
B9/6/16 516327ECP/D - CHG DATA SHEET REVISION MRY
C6/6/17 517424ECP/D - REMOVE DATA SHEET REVISION MRY
D9/5/17 517727ECP/D - ADD DIMENSION TOLERANCES MRY
E3/25/19 520556ECP/D - ADD BLADE TOLERANCES MRY
111.13 ±1.59
4.375 ±0.063
[]
95.24±1.59
3.749 ±0.063
[]
84.12±1.59
3.312±0.063
[]
73.03
[2.875]
17.02±0.89
0.670 ±0.035
[]
8.73
[0.344]
Ø25.40 ±0.381
1.000±0.015
[]
3.18 ±0.15
0.125±0.006
[]
72.24
[2.844]
73.03
[2.875]
30.94 ±Ø0.381
1.218 ±0.015
[]
38.10 ±0.89
1.500 ±0.035
[]
10.41
[0.410]
129.39 ±1.59
5.094±0.063
[]
108.72±1.59
4.280 ±0.063
[]
86.76±1.59
3.416 ±0.063
[]
6.35 ±0.15
0.250±0.006
[]
50.80 ±Ø0.381
2.000 ±0.015
[]
50.80 ±Ø0.381
2.000 ±0.015
[]
6.35 ±0.15
0.250±0.006
[]
63.50 ±Ø0.381
2.500 ±0.015
[]
9.53 ±0.15
0.375 ±0.006
[]
38.10 ±0.89
1.500 ±0.035
[]
13.46
[0.530]
180.09 ±1.59
7.090 ±0.063
[]
156.47±1.59
6.160±0.063
[]
89.67 ±1.59
3.530±0.063
[] 72.24
[2.844]
50.80 ±0.89
2.000±0.035
[]
13.46
[0.530]
173.05±1.59
6.813 ±0.063
[]
142.83 ±1.59
5.623 ±0.063
[]
103.20 ±1.59
4.063±0.063
[]
72.24
[2.844]
35–100A
125–200A
225–400A
450–600A 700–800A
129.16 ±1.59
5.085 ±0.063
[]
106.30 ±1.59
4.185 ±0.063
[]
88.77 ±1.59
3.495 ±0.063
[]
10.41
[0.410]
22.73 ±0.89
0.895 ±0.035
[]
4.75 ±0.15
0.187±0.006
[]
14.29
[0.563] 33.27
[1.310]
46.86
[1.845]
21.39
[0.842
]
19.18
[0.755
]
3RD ANGLE
PROJECTION
EOL-L70QS000
Littelfuse
®
REVISION
DRWG NO.
TITLE
C
DRWDATE
GRAMS/PIECE
FINISH GOOD WT
MYORK9/3/2015
MATL SPEC FINISH
UNLESS OTHERWISE SPECIFIED, DIMENSIONS ARE IN MILLIMETERS, DIMENSIONS IN
BRACKETS [ ] ARE INCHES DIMENSIONING AND DO NOT INCLUDE PLATING. TOLERANCING
TO BE INTERPRETED IN ACCORDANCE WITH ANSI Y14.5M-1994
DENOTES CRITICAL CHARACTERISTICS.
DENOTES CPK DIMENSIONS, -MINIMUM CPK VALUE
DENOTES A CHARACTERISTIC THAT PROVIDES AN INDICATION
OF PROCESS PERFORMANCE. PROCEDURE FOR MEASUREMENT
AND TRACKING TO BE DEFINED IN
LITTELFUSE INSPECTION INSTRUCTIONS.
DENOTES CP DIMENSIONS, -MINIMUM CP VALUE
MUST BE WITHIN THE DIMENSIONAL LIMITATIONS
SHOWN ON DRAWING AND INITIALLY LOCATED TO
ALLOW FOR MAXIMUM TOOL LIFE.
CPK
CP
SHEET 1 OF 1
SCALE
L70QS SERIES OUTLINE
NTS
REVISION
REVDATE DESCRIPTION
A3/23/16515693GCP - RELEASE MRY
B9/6/16 516327ECP/D - CHG DATA SHEET REVISION MRY
C6/6/17 517424ECP/D - REMOVE DATA SHEET REVISION MRY
D9/5/17 517727ECP/D - ADD DIMENSION TOLERANCES MRY
E3/25/19 520556ECP/D - ADD BLADE TOLERANCES MRY
111.13 ±1.59
4.375 ±0.063
[]
95.24±1.59
3.749 ±0.063
[]
84.12±1.59
3.312±0.063
[]
73.03
[2.875]
17.02±0.89
0.670 ±0.035
[]
8.73
[0.344]
Ø25.40 ±0.381
1.000±0.015
[]
3.18 ±0.15
0.125±0.006
[]
72.24
[2.844]
73.03
[2.875]
30.94 ±Ø0.381
1.218 ±0.015
[]
38.10 ±0.89
1.500 ±0.035
[]
10.41
[0.410]
129.39 ±1.59
5.094±0.063
[]
108.72±1.59
4.280 ±0.063
[]
86.76±1.59
3.416 ±0.063
[]
6.35 ±0.15
0.250±0.006
[]
50.80 ±Ø0.381
2.000 ±0.015
[] 50.80 ±Ø0.381
2.000 ±0.015
[]
6.35 ±0.15
0.250±0.006
[]
63.50 ±Ø0.381
2.500 ±0.015
[]
9.53 ±0.15
0.375 ±0.006
[]
38.10 ±0.89
1.500 ±0.035
[]
13.46
[0.530]
180.09 ±1.59
7.090 ±0.063
[]
156.47±1.59
6.160±0.063
[]
89.67 ±1.59
3.530±0.063
[] 72.24
[2.844]
50.80 ±0.89
2.000±0.035
[]
13.46
[0.530]
173
.05±1.59
6.813 ±0.063
[]
142.83 ±1.59
5.623 ±0.063
[]
103.20 ±1.59
4.063±0.063
[]
72.24
[2.844]
35–100A
125–200A 225–400A
450–600A
700–800A
129.16 ±1.59
5.085 ±0.063
[]
106.30 ±1.59
4.185 ±0.063
[]
88.77 ±1.59
3.495 ±0.063
[]
10.41
[0.410]
22.73 ±0.89
0.895 ±0.035
[]
4.75 ±0.15
0.187±0.006
[]
14.29
[0.563]
33.27
[1.310]
46.86
[1.845]
21.39
[0.842]
19.18
[0.755]
3RD ANGLE
PROJECTION
EOL-L70QS000
Littelfuse
®
REVISION
DRWG NO.
TITLE
C
DRWDATE
GRAMS/PIECE
FINISH GOOD WT
MYORK9/3/2015
MATL SPEC FINISH
UNLESS OTHERWISE SPECIFIED, DIMENSIONS ARE IN MILLIMETERS, DIMENSIONS IN
BRACKETS [ ] ARE INCHES DIMENSIONING AND DO NOT INCLUDE PLATING. TOLERANCING
TO BE INTERPRETED IN ACCORDANCE WITH ANSI Y14.5M-1994
DENOTES CRITICAL CHARACTERISTICS.
DENOTES CPK DIMENSIONS, -MINIMUM CPK VALUE
DENOTES A CHARACTERISTIC THAT PROVIDES AN INDICATION
OF PROCESS PERFORMANCE. PROCEDURE FOR MEASUREMENT
AND TRACKING TO BE DEFINED IN
LITTELFUSE INSPECTION INSTRUCTIONS.
DENOTES CP DIMENSIONS, -MINIMUM CP VALUE
MUST BE WITHIN THE DIMENSIONAL LIMITATIONS
SHOWN ON DRAWING AND INITIALLY LOCATED TO
ALLOW FOR MAXIMUM TOOL LIFE.
CPK
CP
SHEET 1 OF 1
SCALE
L70QS SERIES OUTLINE
NTS
REVISION
REVDATE DESCRIPTION
A3/23/16515693GCP - RELEASE MRY
B9/6/16 516327ECP/D - CHG DATA SHEET REVISION MRY
C6/6/17 517424ECP/D - REMOVE DATA SHEET REVISION MRY
D9/5/17 517727ECP/D - ADD DIMENSION TOLERANCES MRY
E3/25/19 520556ECP/D - ADD BLADE TOLERANCES MRY
111.13 ±1.59
4.375 ±0.063
[]
95.24±1.59
3.749 ±0.063
[]
84.12±1.59
3.312±0.063
[]
73.03
[2.875]
17.02±0.89
0.670 ±0.035
[]
8.73
[0.344]
Ø25.40 ±0.381
1.000±0.015
[]
3.18 ±0.15
0.125±0.006
[]
72.24
[2.844]
73.03
[2.875]
30.94 ±Ø0.381
1.218 ±0.015
[]
38.10 ±0.89
1.500 ±0.035
[]
10.41
[0.410]
129.39 ±1.59
5.094±0.063
[]
108.72±1.59
4.280 ±0.063
[]
86.76±1.59
3.416 ±0.063
[]
6.35 ±0.15
0.250±0.006
[]
50.80 ±Ø0.381
2.000 ±0.015
[]
50.80 ±Ø0.381
2.000 ±0.015
[]
6.35 ±0.15
0.250±0.006
[]
63.50 ±Ø0.381
2.500 ±0.015
[]
9.53 ±0.15
0.375 ±0.006
[]
38.10 ±0.89
1.500 ±0.035
[]
13.46
[0.530]
180.09
±1.59
7.090 ±0.063
[]
156.47±1.59
6.160±0.063
[]
89.67 ±1.59
3.530±0.063
[] 72.24
[2.844]
50.80 ±0.89
2.000±0.035
[]
13.46
[0.530]
173.05±1.59
6.813 ±0.063
[]
142.83 ±1.59
5.623 ±0.063
[]
103.20 ±1.59
4.063±0.063
[]
72.24
[2.844]
35–100A
125–200A 225–400A
450–600A
700–800A
129.16 ±1.59
5.085 ±0.063
[]
106.30 ±1.59
4.185 ±0.063
[]
88.77 ±1.59
3.495 ±0.063
[]
10.41
[0.410]
22.73 ±0.89
0.895 ±0.035
[]
4.75 ±0.15
0.187±0.006
[]
14.29
[0.563] 33.27
[1.310]
46.86
[1.845]
21.3
9
[0.842
]
19.18
[0.755]
POWR-SPEED® Fuses
Littelfuse.com/powr-speed
© 2019 Littelfuse, Inc.
21 of 52
L70QS SERIES HIGH-SPEED ROUND BODY
owns C€
50 OS
% litleltuse'
bperluseADphad \ Answeumhvemd
Littelfuse.com/L50QS
© 2019 Littelfuse, Inc.
Rev: 073119
1 of 12
POWR-SPEED® Fuse
L50QS SERIES HIGH-SPEED ROUND BODY
Specifi cations
Voltage Rating Ac: 500 V
Dc: 500 V
Amperage Rating 35–800 A
Interrupting Rating Ac: 200 kA
Dc: 50 kA
Time Constant 10 ms
Material Body: melamine
Caps: copper alloy (silver plated)
Approvals UL Recognized (E71611)
cURus (E71611)
Environmental RoHS Compliant, REACH
Country of Origin Mexico
Operating Temperature -55 °C to +125 °C
Storage Temperature Up to 35 °C with relative humidity <65 %
Description
The L50QS series is a next generation high-speed fuse for
the protection of power semiconductor devices and
is designed in the traditional North American bolted
style package.
L50QS series high-speed fuses are extremely current
limiting and are used to protect power converters, drives
and control circuit applications. Designed with lower I2t
performance characteristics, these fuses provide balanced
performance to extend longevity while lowering potentially
damaging heat energy to the devices being protected.
In addition L50QS series fuses have been designed with a
universal mounting option to meet customer requirements
for installation into a variety of application configurations
Littelfuse POWR-SPEED products offer optimized
circuit protection at the extremely fast speed required to
protect modern day, sensitive, high-power semiconductor
devices. Such products are commonly found in various
industries including pulp and paper industries, cranes and
heavy-lifting equipment, processing industries, wastewater
treatment plants and large factories and MRO facilities.
Features
Compliance with US and Canadian requirements
Traditional North American bolted style dimensions
Class aR performance
Direct bus-bar mount or stud mount design
Halogen free, RoHS and REACH Compliant
Applications
Power converters (inverters, rectifi ers)
Power supplies
UPS
Variable speed drives
Control circuits
Soft starters
Recommended Fuse Blocks
LSCR001 (35–200A)
LSCR002 (225–800A)
500 V ac/dc • Very Fast Acting • 35–800 A
Part Numbering System
L50 QS 500 X
Body Type
Ampere Code
Series
Package Quantity
X = 1 (450–800 A)
V = 5 (125–400 A)
T = 10 (35–100 A)
SERIES BODY
TYPE
AMPERE
CODE
PACKAGE
QUANTITY
CATALOG
NUMBER
ORDERING
NUMBER
L50 QS 500 1L50QS500 L50QS500.X
Web Resources
Download technical documents: Littelfuse.com/L50QS
Note: high-speed fuses are designed for fi xed installations. They are not
intended for use in moving vehicle applications.
HF
POWR-SPEED® Fuses
Littelfuse.com/powr-speed
© 2019 Littelfuse, Inc.
22 of 52
L50QS SERIES HIGH-SPEED ROUND BODY
tleltuse‘
u \ Am,
Littelfuse.com/L50QS
© 2019 Littelfuse, Inc.
Rev: 073119
1 of 12
POWR-SPEED® Fuse
L50QS SERIES HIGH-SPEED ROUND BODY
Specifi cations
Voltage Rating Ac: 500 V
Dc: 500 V
Amperage Rating 35–800 A
Interrupting Rating Ac: 200 kA
Dc: 50 kA
Time Constant 10 ms
Material Body: melamine
Caps: copper alloy (silver plated)
Approvals UL Recognized (E71611)
cURus (E71611)
Environmental RoHS Compliant, REACH
Country of Origin Mexico
Operating Temperature -55 °C to +125 °C
Storage Temperature Up to 35 °C with relative humidity <65 %
Description
The L50QS series is a next generation high-speed fuse for
the protection of power semiconductor devices and
is designed in the traditional North American bolted
style package.
L50QS series high-speed fuses are extremely current
limiting and are used to protect power converters, drives
and control circuit applications. Designed with lower I2t
performance characteristics, these fuses provide balanced
performance to extend longevity while lowering potentially
damaging heat energy to the devices being protected.
In addition L50QS series fuses have been designed with a
universal mounting option to meet customer requirements
for installation into a variety of application configurations
Littelfuse POWR-SPEED products offer optimized
circuit protection at the extremely fast speed required to
protect modern day, sensitive, high-power semiconductor
devices. Such products are commonly found in various
industries including pulp and paper industries, cranes and
heavy-lifting equipment, processing industries, wastewater
treatment plants and large factories and MRO facilities.
Features
Compliance with US and Canadian requirements
Traditional North American bolted style dimensions
Class aR performance
Direct bus-bar mount or stud mount design
Halogen free, RoHS and REACH Compliant
Applications
Power converters (inverters, rectifi ers)
Power supplies
UPS
Variable speed drives
Control circuits
Soft starters
Recommended Fuse Blocks
LSCR001 (35–200A)
LSCR002 (225–800A)
500 V ac/dc • Very Fast Acting • 35–800 A
Part Numbering System
L50 QS 500 X
Body Type
Ampere Code
Series
Package Quantity
X = 1 (450–800 A)
V = 5 (125–400 A)
T = 10 (35–100 A)
SERIES BODY
TYPE
AMPERE
CODE
PACKAGE
QUANTITY
CATALOG
NUMBER
ORDERING
NUMBER
L50 QS 500 1L50QS500 L50QS500.X
Web Resources
Download technical documents: Littelfuse.com/L50QS
Note: high-speed fuses are designed for fi xed installations. They are not
intended for use in moving vehicle applications.
HF
Littelfuse.com/L50QS
© 2019 Littelfuse, Inc.
Rev: 073119
2 of 12
POWR-SPEED® Fuse
L50QS SERIES HIGH-SPEED ROUND BODY
Electrical Specifi cations
CATALOG
NUMBER
AMPERAGE
RATING
VOLTAGE
RATING
INTERRUPT
RATING MELTING
(PRE-ARC)
I
2
T (A
2
s)
TOTAL
CLEARING
I
2
T (A
2
s)
TOTAL
CLEARING
I
2
T (A
2
s)
WATTS LOSS
AT 80 % RATED
CURRENT
WATTS LOSS
AT 100 % RATED
CURRENT
AC DC AC DC 200 kA @ 500 V AC 50 kA @ 500 V DC (W) (W)
L50QS035 35 500 500 200 kA 50 kA 111 430 290 3 5
L50QS040 40 500 500 200 kA 50 kA 137 530 363 3 9
L50QS050 50 500 500 200 kA 50 kA 211 770 516 5 8
L50QS060 60 500 500 200 kA 50 kA 269 1,500 881 5 9
L50QS070 70 500 500 200 kA 50 kA 393 1,775 1,185 611
L50QS080 80 500 500 200 kA 50 kA 616 3,550 1,720 611
L50QS090 90 500 500 200 kA 50 kA 720 4,075 1,990 814
L50QS100 100 500 500 200 kA 50 kA 905 4,577 2,313 917
L50QS125 125 500 500 200 kA 50 kA 1,503 7,65 5 4,815 10 17
L50QS150 150 500 500 200 kA 50 kA 2,382 11,100 7,19 0 12 21
L50QS175 175 500 500 200 kA 50 kA 3,148 16,500 9,900 14 25
L50QS200 200 500 500 200 kA 50 kA 4,102 18,233 11,567 17 32
L50QS225 225 500 500 200 kA 50 kA 5,379 25,300 16,700 19 35
L50QS250 250 500 500 200 kA 50 kA 7,0 9 4 31,350 22,500 20 37
L50QS275 275 500 500 200 kA 50 kA 9,655 40,175 30,177 21 39
L50QS300 300 500 500 200 kA 50 kA 11,240 53,800 36,150 25 46
L50QS325 325 500 500 200 kA 50 kA 13,183 56,250 41,000 27 51
L50QS350 350 500 500 200 kA 50 kA 14,246 68,850 44,800 30 61
L50QS400 400 500 500 200 kA 50 kA 21,155 100,300 67,300 33 65
L50QS450 450 500 500 200 kA 50 kA 26,425 121,000 84,650 35 63
L50QS500 500 500 500 200 kA 50 kA 31,747 141,000 103,500 39 72
L50QS600 600 500 500 200 kA 50 kA 43,922 193,500 128,000 49 92
L50QS700 700 500 500 200 kA 50 kA 75,597 314,000 230,000 51 92
L50QS800 800 500 500 200 kA 50 kA 92,717 393,500 280,000 63 117
POWR-SPEED® Fuses
Littelfuse.com/powr-speed
© 2019 Littelfuse, Inc.
23 of 52
L50QS SERIES HIGH-SPEED ROUND BODY
tleltuse‘
u \ Am,
Littelfuse.com/L50QS
© 2019 Littelfuse, Inc.
Rev: 073119
3 of 12
POWR-SPEED® Fuse
L50QS SERIES HIGH-SPEED ROUND BODY
SERIES AMPERAGE
RATING
AMPERE
CODE
CATALOG
NUMBER
ORDERING
NUMBER
PACK
QUANTITY UPC
L50QS 35 035 L50QS035 L50QS035.T 10 Pcs/ Box 07945885991
L50QS 40 040 L50QS040 L50QS040.T 10 Pcs/ Box 07945885992
L50QS 50 050 L50QS050 L50QS050.T 10 Pcs/ Box 07945885993
L50QS 60 060 L50QS060 L50QS060.T 10 Pcs/ Box 07945885994
L50QS 70 070 L50QS070 L50QS070.T 10 Pcs/ Box 07945885995
L50QS 80 080 L50QS080 L50QS080.T 10 Pcs/ Box 07945885996
L50QS 90 090 L50QS090 L50QS090.T 10 Pcs/ Box 07945885997
L50QS 100 100 L50QS100 L50QS100.T 10 Pcs/ Box 07945885998
L50QS 125 125 L50QS125 L50QS125.V 5 Pcs/ Box 07945885999
L50QS 150 150 L50QS150 L50QS150.V 5 Pcs/ Box 07945886000
L50QS 175 175 L50QS175 L50QS175.V 5 Pcs/ Box 07945886001
L50QS 200 200 L50QS200 L50QS200.V 5 Pcs/ Box 07945886002
L50QS 225 225 L50QS225 L50QS225.V 5 Pcs/ Box 07945886003
L50QS 250 250 L50QS250 L50QS250.V 5 Pcs/ Box 07945886004
L50QS 275 275 L50QS275 L50QS275.V 5 Pcs/ Box 07945886005
L50QS 300 300 L50QS300 L50QS300.V 5 Pcs/ Box 07945886006
L50QS 325 325 L50QS325 L50QS325.V 5 Pcs/ Box 07945886011
L50QS 350 350 L50QS350 L50QS350.V 5 Pcs/ Box 07945886007
L50QS 400 400 L50QS400 L50QS400.V 5 Pcs/ Box 07945886008
L50QS 450 450 L50QS450 L50QS450.X 1 Pc/ Box 07945886009
L50QS 500 500 L50QS500 L50QS500.X 1 Pc/ Box 07945886010
L50QS 600 600 L50QS600 L50QS600.X 1 Pc/ Box 07945886012
L50QS 700 700 L50QS700 L50QS700.X 1 Pc/ Box 07945886013
L50QS 800 800 L50QS800 L50QS800.X 1 Pc/ Box 07945886014
Ordering Information
Littelfuse.com/L50QS
© 2019 Littelfuse, Inc.
Rev: 073119
4 of 12
POWR-SPEED® Fuse
L50QS SERIES HIGH-SPEED ROUND BODY
Dimensions
Millimeters [inches]
Stud Size: M8 (5/16”)
Recommended Torque: 15 Nm (132.76 in-lb)
Stud Size: M8 (5/16”)
Recommended Torque: 15 Nm (132.76 in-lb)
Stud Size: M8 (5/16”)
Recommended Torque: 15 Nm (132.76 in-lb)
Stud Size: M8 (5/16”)
Recommended Torque: 15 Nm (132.76 in-lb)
Stud Size: M12 (1/2”)
Recommended Torque: 54 Nm (477.94 in-lb)
Document Number: OL-L50QS000
CHICAGO, ILLINOIS 60631
3RD ANGLE
PROJECTION
EOL-L50QS000
Littelfuse
®
REVISION
DRWG NO.
TITLE
C
DRWDATE
GRAMS/PIECE
FINISH GOOD WT
MYORK8/28/2015
HSINIFCEPS LTAM
UNLESS OTHERWISE SPECIFIED, DIMENSIONS ARE IN MILLIMETERS, DIMENSIONS IN
BRACKETS [ ] ARE INCHES DIMENSIONING AND DO NOT INCLUDE PLATIN G. TOLERANCING
TO BE INTERPRETED IN ACCORDANCE WITH ANSI Y14.5M-1994
DENOTES CRITICAL CHARACTERISTICS.
DENOTES CPK DIMENSIONS, -MINIMUM CPK VALUE
DENOTES A CHARACTERISTIC THAT PROVIDES AN INDICATION
OF PROCESS PERFORMANCE. PROCEDURE FOR MEASUREMENT
AND TRACKING TO BE DEFINED IN
LITTELFUSE INSPECTION INSTRUCTIONS.
DENOTES CP DIMENSIONS, -MINIMUM CP VALUE
MUST BE WITHIN THE DIMENSIONAL LIMITATIONS
SHOWN ON DRAWING AND INITIALLY LOCATED TO
ALLOW FOR MAXIMUM TOOL LIFE.
CPK
CP
SHEET 1 OF 1
SCALE
L50QS SERIES OUTLINE
NTS
REVISION
REVDATE DESCRIPTION
A3/23/16515693GCP - RELEASE MRY
BYRM NOISIVER TEEHS ATAD GHC - D/PCE72361561/6/9
C6/6/17 517424ECP/D - REMOVE DATA SHEET REVISION MRY
D9/5/17 517727ECP/D - ADD DIMENSION TOLERANCES MRY
EYRM SECNARELOT EDALB DDA - D/PCE65502591/52/3
17.02 0.89
0.670 0.035
[]
92.08 1.59
3.625 0.063
[]
53.98
[2.125]
76.19 1.590
2.999 0.063
[]
65.07 1.59
2.562 0.063
[]
22.730.89
0.895 0.035
[]
92.081.60
3.625 0.063
[]
73.861.60
2.908 0.063
[]
70.321.60
2.768 0.063
[]
53.98
[2.125]
25.270.89
0.995 0.035
[]
110.311.60
4.343 0.063
[]
87.371.60
3.440 0.063
[]
69.831.60
2.749 0.063
[]
53.16
[2.093]
113.49 1.60
4.468 0.063
[]
92.821.60
3.654 0.063
[]
70.861.60
2.790 0.063
[] 56.34
[2.218]
50.800.89
2.000 0.035
[]
157.15 1.60
6.187 0.063
[]
126.93 1.60
4.997 0.063
[]
87.30 1.60
3.437 0.063
[] 56.34
[2.218]
8.73
[0.344]
8.74
[0.344]
10.41
[0.410]
10.41
[0.410]
13.46
[0.530]
3.18 0.15
0.125 0.006
[]
4.75 0.15
0.187 0.006
[]
6.35 0.15
0.250 0.006
[]
6.35 0.15
0.250 0.006
[]
9.53 0.15
0.375 0.006
[]
63.50 0.381
2.500 0.015
[]
50.800.381
2.000 0.015
[]
38.100.381
1.500 0.015
[]
30.940.381
1.218 0.015
[]
25.40 0.381
1.000 0.015
[]
38.100.89
1.500 0.035
[]
35–100A 125–200A
225–400A450–600A
700–800A
14.29
[0.563] 10.51
[0.414]
19.18
[0.755]
21.39
[0.842]
33.27
[1.310]
CHICAGO, ILLINOIS 60631
3RD ANGLE
PROJECTION
EOL-L50QS000
Littelfuse
®
REVISION
DRWG NO.
TITLE
C
DRWDATE
GRAMS/PIECE
FINISH GOOD WT
MYORK8/28/2015
HSINIFCEPS LTAM
UNLESS OTHERWISE SPECIFIED, DIMENSIONS ARE IN MILLIMETERS, DIMENSIONS IN
BRACKETS [ ] ARE INCHES DIMENSIONING AND DO NOT INCLUDE PLATIN G. TOLERANCING
TO BE INTERPRETED IN ACCORDANCE WITH ANSI Y14.5M-1994
DENOTES CRITICAL CHARACTERISTICS.
DENOTES CPK DIMENSIONS, -MINIMUM CPK VALUE
DENOTES A CHARACTERISTIC THAT PROVIDES AN INDICATION
OF PROCESS PERFORMANCE. PROCEDURE FOR MEASUREMENT
AND TRACKING TO BE DEFINED IN
LITTELFUSE INSPECTION INSTRUCTIONS.
DENOTES CP DIMENSIONS, -MINIMUM CP VALUE
MUST BE WITHIN THE DIMENSIONAL LIMITATIONS
SHOWN ON DRAWING AND INITIALLY LOCATED TO
ALLOW FOR MAXIMUM TOOL LIFE.
CPK
CP
SHEET 1 OF 1
SCALE
L50QS SERIES OUTLINE
NTS
REVISION
REVDATE DESCRIPTION
A3/23/16515693GCP - RELEASE MRY
BYRM NOISIVER TEEHS ATAD GHC - D/PCE72361561/6/9
C6/6/17 517424ECP/D - REMOVE DATA SHEET REVISION MRY
D9/5/17 517727ECP/D - ADD DIMENSION TOLERANCES MRY
EYRM SECNARELOT EDALB DDA - D/PCE65502591/52/3
17.02 0.89
0.670 0.035
[]
92.08 1.59
3.625 0.063
[]
53.98
[2.125]
76.19 1.590
2.999 0.063
[]
65.07 1.59
2.562 0.063
[]
22.730.89
0.895 0.035
[]
92.081.60
3.625 0.063
[]
73.861.60
2.908 0.063
[]
70.321.60
2.768 0.063
[]
53.98
[2.125]
25.270.89
0.995 0.035
[]
110.311.60
4.343 0.063
[]
87.371.60
3.440 0.063
[]
69.831.60
2.749 0.063
[]
53.16
[2.093]
113.49 1.60
4.468 0.063
[]
92.821.60
3.654 0.063
[]
70.861.60
2.790 0.063
[] 56.34
[2.218]
50.800.89
2.000 0.035
[]
157.15 1.60
6.187 0.063
[]
126.93 1.60
4.997 0.063
[]
87.30 1.60
3.437 0.063
[] 56.34
[2.218]
8.73
[0.344]
8.74
[0.344]
10.41
[0.410]
10.41
[0.410]
13.46
[0.530]
3.18 0.15
0.125 0.006
[]
4.75 0.15
0.187 0.006
[]
6.35 0.15
0.250 0.006
[]
6.35 0.15
0.250 0.006
[]
9.53 0.15
0.375 0.006
[]
63.50 0.381
2.500 0.015
[]
50.800.381
2.000 0.015
[]
38.100.381
1.500 0.015
[]
30.940.381
1.218 0.015
[]
25.40 0.381
1.000 0.015
[]
38.100.89
1.500 0.035
[]
35–100A 125–200A
225–400A450–600A
700–800A
14.29
[0.563] 10.51
[0.414]
19.18
[0.755]
21.39
[0.842]
33.27
[1.310]
CHICAGO, ILLINOIS 60631
3RD ANGLE
PROJECTION
EOL-L50QS000
Littelfuse
®
REVISION
DRWG NO.
TITLE
C
DRWDATE
GRAMS/PIECE
FINISH GOOD WT
MYORK8/28/2015
HSINIFCEPS LTAM
UNLESS OTHERWISE SPECIFIED, DIMENSIONS ARE IN MILLIMETERS, DIMENSIONS IN
BRACKETS [ ] ARE INCHES DIMENSIONING AND DO NOT INCLUDE PLATIN G. TOLERANCING
TO BE INTERPRETED IN ACCORDANCE WITH ANSI Y14.5M-1994
DENOTES CRITICAL CHARACTERISTICS.
DENOTES CPK DIMENSIONS, -MINIMUM CPK VALUE
DENOTES A CHARACTERISTIC THAT PROVIDES AN INDICATION
OF PROCESS PERFORMANCE. PROCEDURE FOR MEASUREMENT
AND TRACKING TO BE DEFINED IN
LITTELFUSE INSPECTION INSTRUCTIONS.
DENOTES CP DIMENSIONS, -MINIMUM CP VALUE
MUST BE WITHIN THE DIMENSIONAL LIMITATIONS
SHOWN ON DRAWING AND INITIALLY LOCATED TO
ALLOW FOR MAXIMUM TOOL LIFE.
CPK
CP
SHEET 1 OF 1
SCALE
L50QS SERIES OUTLINE
NTS
REVISION
REVDATE DESCRIPTION
A3/23/16515693GCP - RELEASE MRY
BYRM NOISIVER TEEHS ATAD GHC - D/PCE72361561/6/9
C6/6/17 517424ECP/D - REMOVE DATA SHEET REVISION MRY
D9/5/17 517727ECP/D - ADD DIMENSION TOLERANCES MRY
EYRM SECNARELOT EDALB DDA - D/PCE65502591/52/3
17.02 0.89
0.670 0.035
[]
92.08 1.59
3.625 0.063
[]
53.98
[2.125]
76.19 1.590
2.999 0.063
[]
65.07 1.59
2.562 0.063
[]
22.730.89
0.895 0.035
[]
92.081.60
3.625 0.063
[]
73.861.60
2.908 0.063
[]
70.321.60
2.768 0.063
[]
53.98
[2.125]
25.270.89
0.995 0.035
[]
110.311.60
4.343 0.063
[]
87.371.60
3.440 0.063
[]
69.831.60
2.749 0.063
[]
53.16
[2.093]
113.49 1.60
4.468 0.063
[]
92.821.60
3.654 0.063
[]
70.861.60
2.790 0.063
[] 56.34
[2.218]
50.800.89
2.000 0.035
[]
157.15 1.60
6.187 0.063
[]
126.93 1.60
4.997 0.063
[]
87.30 1.60
3.437 0.063
[] 56.34
[2.218]
8.73
[0.344]
8.74
[0.344]
10.41
[0.410]
10.41
[0.410]
13.46
[0.530]
3.18 0.15
0.125 0.006
[]
4.75 0.15
0.187 0.006
[]
6.35 0.15
0.250 0.006
[]
6.35 0.15
0.250 0.006
[]
9.53 0.15
0.375 0.006
[]
63.50 0.381
2.500 0.015
[]
50.800.381
2.000 0.015
[]
38.100.381
1.500 0.015
[]
30.940.381
1.218 0.015
[]
25.40 0.381
1.000 0.015
[]
38.100.89
1.500 0.035
[]
35–100A 125–200A
225–400A450–600A
700–800A
14.29
[0.563] 10.51
[0.414]
19.18
[0.755]
21.39
[0.842]
33.27
[1.310]
CHICAGO, ILLINOIS 60631
3RD ANGLE
PROJECTION
EOL-L50QS000
Littelfuse
®
REVISION
DRWG NO.
TITLE
C
DRWDATE
GRAMS/PIECE
FINISH GOOD WT
MYORK8/28/2015
HSINIFCEPS LTAM
UNLESS OTHERWISE SPECIFIED, DIMENSIONS ARE IN MILLIMETERS, DIMENSIONS IN
BRACKETS [ ] ARE INCHES DIMENSIONING AND DO NOT INCLUDE PLATIN G. TOLERANCING
TO BE INTERPRETED IN ACCORDANCE WITH ANSI Y14.5M-1994
DENOTES CRITICAL CHARACTERISTICS.
DENOTES CPK DIMENSIONS, -MINIMUM CPK VALUE
DENOTES A CHARACTERISTIC THAT PROVIDES AN INDICATION
OF PROCESS PERFORMANCE. PROCEDURE FOR MEASUREMENT
AND TRACKING TO BE DEFINED IN
LITTELFUSE INSPECTION INSTRUCTIONS.
DENOTES CP DIMENSIONS, -MINIMUM CP VALUE
MUST BE WITHIN THE DIMENSIONAL LIMITATIONS
SHOWN ON DRAWING AND INITIALLY LOCATED TO
ALLOW FOR MAXIMUM TOOL LIFE.
CPK
CP
SHEET 1 OF 1
SCALE
L50QS SERIES OUTLINE
NTS
REVISION
REVDATE DESCRIPTION
A3/23/16515693GCP - RELEASE MRY
BYRM NOISIVER TEEHS ATAD GHC - D/PCE72361561/6/9
C6/6/17 517424ECP/D - REMOVE DATA SHEET REVISION MRY
D9/5/17 517727ECP/D - ADD DIMENSION TOLERANCES MRY
EYRM SECNARELOT EDALB DDA - D/PCE65502591/52/3
17.02 0.89
0.670 0.035
[]
92.08 1.59
3.625 0.063
[]
53.98
[2.125]
76.19 1.590
2.999 0.063
[]
65.07 1.59
2.562 0.063
[]
22.730.89
0.895 0.035
[]
92.081.60
3.625 0.063
[]
73.861.60
2.908 0.063
[]
70.321.60
2.768 0.063
[]
53.98
[2.125]
25.270.89
0.995 0.035
[]
110.311.60
4.343 0.063
[]
87.371.60
3.440 0.063
[]
69.831.60
2.749 0.063
[]
53.16
[2.093]
113.49 1.60
4.468 0.063
[]
92.821.60
3.654 0.063
[]
70.861.60
2.790 0.063
[] 56.34
[2.218]
50.800.89
2.000 0.035
[]
157.15 1.60
6.187 0.063
[]
126.93 1.60
4.997 0.063
[]
87.30 1.60
3.437 0.063
[] 56.34
[2.218]
8.73
[0.344]
8.74
[0.344]
10.41
[0.410]
10.41
[0.410]
13.46
[0.530]
3.18 0.15
0.125 0.006
[]
4.75 0.15
0.187 0.006
[]
6.35 0.15
0.250 0.006
[]
6.35 0.15
0.250 0.006
[]
9.53 0.15
0.375 0.006
[]
63.50 0.381
2.500 0.015
[]
50.800.381
2.000 0.015
[]
38.100.381
1.500 0.015
[]
30.940.381
1.218 0.015
[]
25.40 0.381
1.000 0.015
[]
38.100.89
1.500 0.035
[]
35–100A 125–200A
225–400A450–600A
700–800A
14.29
[0.563] 10.51
[0.414]
19.18
[0.755]
21.39
[0.842]
33.27
[1.310]
CHICAGO, ILLINOIS 60631
3RD ANGLE
PROJECTION
EOL-L50QS000
Littelfuse
®
REVISION
DRWG NO.
TITLE
C
DRWDATE
GRAMS/PIECE
FINISH GOOD WT
MYORK8/28/2015
HSINIFCEPS LTAM
UNLESS OTHERWISE SPECIFIED, DIMENSIONS ARE IN MILLIMETERS, DIMENSIONS IN
BRACKETS [ ] ARE INCHES DIMENSIONING AND DO NOT INCLUDE PLATIN G. TOLERANCING
TO BE INTERPRETED IN ACCORDANCE WITH ANSI Y14.5M-1994
DENOTES CRITICAL CHARACTERISTICS.
DENOTES CPK DIMENSIONS, -MINIMUM CPK VALUE
DENOTES A CHARACTERISTIC THAT PROVIDES AN INDICATION
OF PROCESS PERFORMANCE. PROCEDURE FOR MEASUREMENT
AND TRACKING TO BE DEFINED IN
LITTELFUSE INSPECTION INSTRUCTIONS.
DENOTES CP DIMENSIONS, -MINIMUM CP VALUE
MUST BE WITHIN THE DIMENSIONAL LIMITATIONS
SHOWN ON DRAWING AND INITIALLY LOCATED TO
ALLOW FOR MAXIMUM TOOL LIFE.
CPK
CP
SHEET 1 OF 1
SCALE
L50QS SERIES OUTLINE
NTS
REVISION
REVDATE DESCRIPTION
A3/23/16515693GCP - RELEASE MRY
BYRM NOISIVER TEEHS ATAD GHC - D/PCE72361561/6/9
C6/6/17 517424ECP/D - REMOVE DATA SHEET REVISION MRY
D9/5/17 517727ECP/D - ADD DIMENSION TOLERANCES MRY
EYRM SECNARELOT EDALB DDA - D/PCE65502591/52/3
17.02 0.89
0.670 0.035
[]
92.08 1.59
3.625 0.063
[]
53.98
[2.125]
76.19 1.590
2.999 0.063
[]
65.07 1.59
2.562 0.063
[]
22.730.89
0.895 0.035
[]
92.081.60
3.625 0.063
[]
73.861.60
2.908 0.063
[]
70.321.60
2.768 0.063
[]
53.98
[2.125]
25.270.89
0.995 0.035
[]
110.311.60
4.343 0.063
[]
87.371.60
3.440 0.063
[]
69.831.60
2.749 0.063
[]
53.16
[2.093]
113.49 1.60
4.468 0.063
[]
92.821.60
3.654 0.063
[]
70.861.60
2.790 0.063
[] 56.34
[2.218]
50.800.89
2.000 0.035
[]
157.15 1.60
6.187 0.063
[]
126.93 1.60
4.997 0.063
[]
87.30 1.60
3.437 0.063
[] 56.34
[2.218]
8.73
[0.344]
8.74
[0.344]
10.41
[0.410]
10.41
[0.410]
13.46
[0.530]
3.18 0.15
0.125 0.006
[]
4.75 0.15
0.187 0.006
[]
6.35 0.15
0.250 0.006
[]
6.35 0.15
0.250 0.006
[]
9.53 0.15
0.375 0.006
[]
63.50 0.381
2.500 0.015
[]
50.800.381
2.000 0.015
[]
38.100.381
1.500 0.015
[]
30.940.381
1.218 0.015
[]
25.40 0.381
1.000 0.015
[]
38.100.89
1.500 0.035
[]
35–100A 125–200A
225–400A450–600A
700–800A
14.29
[0.563] 10.51
[0.414]
19.18
[0.755]
21.39
[0.842]
33.27
[1.310]
CHICAGO, ILLINOIS 60631
3RD ANGLE
PROJECTION
EOL-L50QS000
Littelfuse
®
REVISION
DRWG NO.
TITLE
C
DRWDATE
GRAMS/PIECE
FINISH GOOD WT
MYORK8/28/2015
HSINIFCEPS LTAM
UNLESS OTHERWISE SPECIFIED, DIMENSIONS ARE IN MILLIMETERS, DIMENSIONS IN
BRACKETS [ ] ARE INCHES DIMENSIONING AND DO NOT INCLUDE PLATIN G. TOLERANCING
TO BE INTERPRETED IN ACCORDANCE WITH ANSI Y14.5M-1994
DENOTES CRITICAL CHARACTERISTICS.
DENOTES CPK DIMENSIONS, -MINIMUM CPK VALUE
DENOTES A CHARACTERISTIC THAT PROVIDES AN INDICATION
OF PROCESS PERFORMANCE. PROCEDURE FOR MEASUREMENT
AND TRACKING TO BE DEFINED IN
LITTELFUSE INSPECTION INSTRUCTIONS.
DENOTES CP DIMENSIONS, -MINIMUM CP VALUE
MUST BE WITHIN THE DIMENSIONAL LIMITATIONS
SHOWN ON DRAWING AND INITIALLY LOCATED TO
ALLOW FOR MAXIMUM TOOL LIFE.
CPK
CP
SHEET 1 OF 1
SCALE
L50QS SERIES OUTLINE
NTS
REVISION
REVDATE DESCRIPTION
A3/23/16515693GCP - RELEASE MRY
BYRM NOISIVER TEEHS ATAD GHC - D/PCE72361561/6/9
C6/6/17 517424ECP/D - REMOVE DATA SHEET REVISION MRY
D9/5/17 517727ECP/D - ADD DIMENSION TOLERANCES MRY
EYRM SECNARELOT EDALB DDA - D/PCE65502591/52/3
17.02 0.89
0.670 0.035
[]
92.08 1.59
3.625 0.063
[]
53.98
[2.125]
76.19 1.590
2.999 0.063
[]
65.07 1.59
2.562 0.063
[]
22.730.89
0.895 0.035
[]
92.081.60
3.625 0.063
[]
73.861.60
2.908 0.063
[]
70.321.60
2.768 0.063
[]
53.98
[2.125]
25.270.89
0.995 0.035
[]
110.311.60
4.343 0.063
[]
87.371.60
3.440 0.063
[]
69.831.60
2.749 0.063
[]
53.16
[2.093]
113.49 1.60
4.468 0.063
[]
92.821.60
3.654 0.063
[]
70.861.60
2.790 0.063
[] 56.34
[2.218]
50.800.89
2.000 0.035
[]
157.15 1.60
6.187 0.063
[]
126.93 1.60
4.997 0.063
[]
87.30 1.60
3.437 0.063
[] 56.34
[2.218]
8.73
[0.344]
8.74
[0.344]
10.41
[0.410]
10.41
[0.410]
13.46
[0.530]
3.18 0.15
0.125 0.006
[]
4.75 0.15
0.187 0.006
[]
6.35 0.15
0.250 0.006
[]
6.35 0.15
0.250 0.006
[]
9.53 0.15
0.375 0.006
[]
63.50 0.381
2.500 0.015
[]
50.800.381
2.000 0.015
[]
38.100.381
1.500 0.015
[]
30.940.381
1.218 0.015
[]
25.40 0.381
1.000 0.015
[]
38.100.89
1.500 0.035
[]
35–100A 125–200A
225–400A450–600A
700–800A
14.29
[0.563] 10.51
[0.414]
19.18
[0.755]
21.39
[0.842]
33.27
[1.310]
CHICAGO, ILLINOIS 60631
3RD ANGLE
PROJECTION
EOL-L50QS000
Littelfuse
®
REVISION
DRWG NO.
TITLE
C
DRWDATE
GRAMS/PIECE
FINISH GOOD WT
MYORK8/28/2015
HSINIFCEPS LTAM
UNLESS OTHERWISE SPECIFIED, DIMENSIONS ARE IN MILLIMETERS, DIMENSIONS IN
BRACKETS [ ] ARE INCHES DIMENSIONING AND DO NOT INCLUDE PLATIN G. TOLERANCING
TO BE INTERPRETED IN ACCORDANCE WITH ANSI Y14.5M-1994
DENOTES CRITICAL CHARACTERISTICS.
DENOTES CPK DIMENSIONS, -MINIMUM CPK VALUE
DENOTES A CHARACTERISTIC THAT PROVIDES AN INDICATION
OF PROCESS PERFORMANCE. PROCEDURE FOR MEASUREMENT
AND TRACKING TO BE DEFINED IN
LITTELFUSE INSPECTION INSTRUCTIONS.
DENOTES CP DIMENSIONS, -MINIMUM CP VALUE
MUST BE WITHIN THE DIMENSIONAL LIMITATIONS
SHOWN ON DRAWING AND INITIALLY LOCATED TO
ALLOW FOR MAXIMUM TOOL LIFE.
CPK
CP
SHEET 1 OF 1
SCALE
L50QS SERIES OUTLINE
NTS
REVISION
REVDATE DESCRIPTION
A3/23/16515693GCP - RELEASE MRY
BYRM NOISIVER TEEHS ATAD GHC - D/PCE72361561/6/9
C6/6/17 517424ECP/D - REMOVE DATA SHEET REVISION MRY
D9/5/17 517727ECP/D - ADD DIMENSION TOLERANCES MRY
EYRM SECNARELOT EDALB DDA - D/PCE65502591/52/3
17.02 0.89
0.670 0.035
[]
92.08 1.59
3.625 0.063
[]
53.98
[2.125]
76.19 1.590
2.999 0.063
[]
65.07 1.59
2.562 0.063
[]
22.730.89
0.895 0.035
[]
92.081.60
3.625 0.063
[]
73.861.60
2.908 0.063
[]
70.321.60
2.768 0.063
[]
53.98
[2.125]
25.270.89
0.995 0.035
[]
110.311.60
4.343 0.063
[]
87.371.60
3.440 0.063
[]
69.831.60
2.749 0.063
[]
53.16
[2.093]
113.49 1.60
4.468 0.063
[]
92.821.60
3.654 0.063
[]
70.861.60
2.790 0.063
[] 56.34
[2.218]
50.800.89
2.000 0.035
[]
157.15 1.60
6.187 0.063
[]
126.93 1.60
4.997 0.063
[]
87.30 1.60
3.437 0.063
[] 56.34
[2.218]
8.73
[0.344]
8.74
[0.344]
10.41
[0.410]
10.41
[0.410]
13.46
[0.530]
3.18 0.15
0.125 0.006
[]
4.75 0.15
0.187 0.006
[]
6.35 0.15
0.250 0.006
[]
6.35 0.15
0.250 0.006
[]
9.53 0.15
0.375 0.006
[]
63.50 0.381
2.500 0.015
[]
50.800.381
2.000 0.015
[]
38.100.381
1.500 0.015
[]
30.940.381
1.218 0.015
[]
25.40 0.381
1.000 0.015
[]
38.100.89
1.500 0.035
[]
35–100A 125–200A
225–400A450–600A
700–800A
14.29
[0.563] 10.51
[0.414]
19.18
[0.755]
21.39
[0.842]
33.27
[1.310]
CHICAGO, ILLINOIS 60631
3RD ANGLE
PROJECTION
EOL-L50QS000
Littelfuse
®
REVISION
DRWG NO.
TITLE
C
DRWDATE
GRAMS/PIECE
FINISH GOOD WT
MYORK8/28/2015
HSINIFCEPS LTAM
UNLESS OTHERWISE SPECIFIED, DIMENSIONS ARE IN MILLIMETERS, DIMENSIONS IN
BRACKETS [ ] ARE INCHES DIMENSIONING AND DO NOT INCLUDE PLATIN G. TOLERANCING
TO BE INTERPRETED IN ACCORDANCE WITH ANSI Y14.5M-1994
DENOTES CRITICAL CHARACTERISTICS.
DENOTES CPK DIMENSIONS, -MINIMUM CPK VALUE
DENOTES A CHARACTERISTIC THAT PROVIDES AN INDICATION
OF PROCESS PERFORMANCE. PROCEDURE FOR MEASUREMENT
AND TRACKING TO BE DEFINED IN
LITTELFUSE INSPECTION INSTRUCTIONS.
DENOTES CP DIMENSIONS, -MINIMUM CP VALUE
MUST BE WITHIN THE DIMENSIONAL LIMITATIONS
SHOWN ON DRAWING AND INITIALLY LOCATED TO
ALLOW FOR MAXIMUM TOOL LIFE.
CPK
CP
SHEET 1 OF 1
SCALE
L50QS SERIES OUTLINE
NTS
REVISION
REVDATE DESCRIPTION
A3/23/16515693GCP - RELEASE MRY
BYRM NOISIVER TEEHS ATAD GHC - D/PCE72361561/6/9
C6/6/17 517424ECP/D - REMOVE DATA SHEET REVISION MRY
D9/5/17 517727ECP/D - ADD DIMENSION TOLERANCES MRY
EYRM SECNARELOT EDALB DDA - D/PCE65502591/52/3
17.02 0.89
0.670 0.035
[]
92.08 1.59
3.625 0.063
[]
53.98
[2.125]
76.19 1.590
2.999 0.063
[]
65.07 1.59
2.562 0.063
[]
22.730.89
0.895 0.035
[]
92.081.60
3.625 0.063
[]
73.861.60
2.908 0.063
[]
70.321.60
2.768 0.063
[]
53.98
[2.125]
25.270.89
0.995 0.035
[]
110.311.60
4.343 0.063
[]
87.371.60
3.440 0.063
[]
69.831.60
2.749 0.063
[]
53.16
[2.093]
113.49 1.60
4.468 0.063
[]
92.821.60
3.654 0.063
[]
70.861.60
2.790 0.063
[] 56.34
[2.218]
50.800.89
2.000 0.035
[]
157.15 1.60
6.187 0.063
[]
126.93 1.60
4.997 0.063
[]
87.30 1.60
3.437 0.063
[] 56.34
[2.218]
8.73
[0.344]
8.74
[0.344]
10.41
[0.410]
10.41
[0.410]
13.46
[0.530]
3.18 0.15
0.125 0.006
[]
4.75 0.15
0.187 0.006
[]
6.35 0.15
0.250 0.006
[]
6.35 0.15
0.250 0.006
[]
9.53 0.15
0.375 0.006
[]
63.50 0.381
2.500 0.015
[]
50.800.381
2.000 0.015
[]
38.100.381
1.500 0.015
[]
30.940.381
1.218 0.015
[]
25.40 0.381
1.000 0.015
[]
38.100.89
1.500 0.035
[]
35–100A 125–200A
225–400A450–600A
700–800A
14.29
[0.563] 10.51
[0.414]
19.18
[0.755]
21.39
[0.842]
33.27
[1.310]
POWR-SPEED® Fuses
Littelfuse.com/powr-speed
© 2019 Littelfuse, Inc.
24 of 52
L50QS SERIES HIGH-SPEED ROUND BODY
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Littelfuse.com/L50QS
© 2019 Littelfuse, Inc.
Rev: 073119
3 of 12
POWR-SPEED® Fuse
L50QS SERIES HIGH-SPEED ROUND BODY
SERIES AMPERAGE
RATING
AMPERE
CODE
CATALOG
NUMBER
ORDERING
NUMBER
PACK
QUANTITY UPC
L50QS 35 035 L50QS035 L50QS035.T 10 Pcs/ Box 07945885991
L50QS 40 040 L50QS040 L50QS040.T 10 Pcs/ Box 07945885992
L50QS 50 050 L50QS050 L50QS050.T 10 Pcs/ Box 07945885993
L50QS 60 060 L50QS060 L50QS060.T 10 Pcs/ Box 07945885994
L50QS 70 070 L50QS070 L50QS070.T 10 Pcs/ Box 07945885995
L50QS 80 080 L50QS080 L50QS080.T 10 Pcs/ Box 07945885996
L50QS 90 090 L50QS090 L50QS090.T 10 Pcs/ Box 07945885997
L50QS 100 100 L50QS100 L50QS100.T 10 Pcs/ Box 07945885998
L50QS 125 125 L50QS125 L50QS125.V 5 Pcs/ Box 07945885999
L50QS 150 150 L50QS150 L50QS150.V 5 Pcs/ Box 07945886000
L50QS 175 175 L50QS175 L50QS175.V 5 Pcs/ Box 07945886001
L50QS 200 200 L50QS200 L50QS200.V 5 Pcs/ Box 07945886002
L50QS 225 225 L50QS225 L50QS225.V 5 Pcs/ Box 07945886003
L50QS 250 250 L50QS250 L50QS250.V 5 Pcs/ Box 07945886004
L50QS 275 275 L50QS275 L50QS275.V 5 Pcs/ Box 07945886005
L50QS 300 300 L50QS300 L50QS300.V 5 Pcs/ Box 07945886006
L50QS 325 325 L50QS325 L50QS325.V 5 Pcs/ Box 07945886011
L50QS 350 350 L50QS350 L50QS350.V 5 Pcs/ Box 07945886007
L50QS 400 400 L50QS400 L50QS400.V 5 Pcs/ Box 07945886008
L50QS 450 450 L50QS450 L50QS450.X 1 Pc/ Box 07945886009
L50QS 500 500 L50QS500 L50QS500.X 1 Pc/ Box 07945886010
L50QS 600 600 L50QS600 L50QS600.X 1 Pc/ Box 07945886012
L50QS 700 700 L50QS700 L50QS700.X 1 Pc/ Box 07945886013
L50QS 800 800 L50QS800 L50QS800.X 1 Pc/ Box 07945886014
Ordering Information
Littelfuse.com/L50QS
© 2019 Littelfuse, Inc.
Rev: 073119
4 of 12
POWR-SPEED® Fuse
L50QS SERIES HIGH-SPEED ROUND BODY
Dimensions
Millimeters [inches]
Stud Size: M8 (5/16”)
Recommended Torque: 15 Nm (132.76 in-lb)
Stud Size: M8 (5/16”)
Recommended Torque: 15 Nm (132.76 in-lb)
Stud Size: M8 (5/16”)
Recommended Torque: 15 Nm (132.76 in-lb)
Stud Size: M8 (5/16”)
Recommended Torque: 15 Nm (132.76 in-lb)
Stud Size: M12 (1/2”)
Recommended Torque: 54 Nm (477.94 in-lb)
Document Number: OL-L50QS000
CHICAGO, ILLINOIS 60631
3RD ANGLE
PROJECTION
EOL-L50QS000
Littelfuse
®
REVISION
DRWG NO.
TITLE
C
DRWDATE
GRAMS/PIECE
FINISH GOOD WT
MYORK8/28/2015
HSINIFCEPS LTAM
UNLESS OTHERWISE SPECIFIED, DIMENSIONS ARE IN MILLIMETERS, DIMENSIONS IN
BRACKETS [ ] ARE INCHES DIMENSIONING AND DO NOT INCLUDE PLATIN G. TOLERANCING
TO BE INTERPRETED IN ACCORDANCE WITH ANSI Y14.5M-1994
DENOTES CRITICAL CHARACTERISTICS.
DENOTES CPK DIMENSIONS, -MINIMUM CPK VALUE
DENOTES A CHARACTERISTIC THAT PROVIDES AN INDICATION
OF PROCESS PERFORMANCE. PROCEDURE FOR MEASUREMENT
AND TRACKING TO BE DEFINED IN
LITTELFUSE INSPECTION INSTRUCTIONS.
DENOTES CP DIMENSIONS, -MINIMUM CP VALUE
MUST BE WITHIN THE DIMENSIONAL LIMITATIONS
SHOWN ON DRAWING AND INITIALLY LOCATED TO
ALLOW FOR MAXIMUM TOOL LIFE.
CPK
CP
SHEET 1 OF 1
SCALE
L50QS SERIES OUTLINE
NTS
REVISION
REVDATE DESCRIPTION
A3/23/16515693GCP - RELEASE MRY
BYRM NOISIVER TEEHS ATAD GHC - D/PCE72361561/6/9
C6/6/17 517424ECP/D - REMOVE DATA SHEET REVISION MRY
D9/5/17 517727ECP/D - ADD DIMENSION TOLERANCES MRY
EYRM SECNARELOT EDALB DDA - D/PCE65502591/52/3
17.02 0.89
0.670 0.035
[]
92.08 1.59
3.625 0.063
[]
53.98
[2.125]
76.19 1.590
2.999 0.063
[]
65.07 1.59
2.562 0.063
[]
22.730.89
0.895 0.035
[]
92.081.60
3.625 0.063
[]
73.861.60
2.908 0.063
[]
70.321.60
2.768 0.063
[]
53.98
[2.125]
25.270.89
0.995 0.035
[]
110.311.60
4.343 0.063
[]
87.371.60
3.440 0.063
[]
69.831.60
2.749 0.063
[]
53.16
[2.093]
113.49 1.60
4.468 0.063
[]
92.821.60
3.654 0.063
[]
70.861.60
2.790 0.063
[] 56.34
[2.218]
50.800.89
2.000 0.035
[]
157.15 1.60
6.187 0.063
[]
126.93 1.60
4.997 0.063
[]
87.30 1.60
3.437 0.063
[] 56.34
[2.218]
8.73
[0.344]
8.74
[0.344]
10.41
[0.410]
10.41
[0.410]
13.46
[0.530]
3.18 0.15
0.125 0.006
[]
4.75 0.15
0.187 0.006
[]
6.35 0.15
0.250 0.006
[]
6.35 0.15
0.250 0.006
[]
9.53 0.15
0.375 0.006
[]
63.50 0.381
2.500 0.015
[]
50.800.381
2.000 0.015
[]
38.100.381
1.500 0.015
[]
30.940.381
1.218 0.015
[]
25.40 0.381
1.000 0.015
[]
38.100.89
1.500 0.035
[]
35–100A 125–200A
225–400A450–600A
700–800A
14.29
[0.563] 10.51
[0.414]
19.18
[0.755]
21.39
[0.842]
33.27
[1.310]
CHICAGO, ILLINOIS 60631
3RD ANGLE
PROJECTION
EOL-L50QS000
Littelfuse
®
REVISION
DRWG NO.
TITLE
C
DRWDATE
GRAMS/PIECE
FINISH GOOD WT
MYORK8/28/2015
HSINIFCEPS LTAM
UNLESS OTHERWISE SPECIFIED, DIMENSIONS ARE IN MILLIMETERS, DIMENSIONS IN
BRACKETS [ ] ARE INCHES DIMENSIONING AND DO NOT INCLUDE PLATIN G. TOLERANCING
TO BE INTERPRETED IN ACCORDANCE WITH ANSI Y14.5M-1994
DENOTES CRITICAL CHARACTERISTICS.
DENOTES CPK DIMENSIONS, -MINIMUM CPK VALUE
DENOTES A CHARACTERISTIC THAT PROVIDES AN INDICATION
OF PROCESS PERFORMANCE. PROCEDURE FOR MEASUREMENT
AND TRACKING TO BE DEFINED IN
LITTELFUSE INSPECTION INSTRUCTIONS.
DENOTES CP DIMENSIONS, -MINIMUM CP VALUE
MUST BE WITHIN THE DIMENSIONAL LIMITATIONS
SHOWN ON DRAWING AND INITIALLY LOCATED TO
ALLOW FOR MAXIMUM TOOL LIFE.
CPK
CP
SHEET 1 OF 1
SCALE
L50QS SERIES OUTLINE
NTS
REVISION
REVDATE DESCRIPTION
A3/23/16515693GCP - RELEASE MRY
BYRM NOISIVER TEEHS ATAD GHC - D/PCE72361561/6/9
C6/6/17 517424ECP/D - REMOVE DATA SHEET REVISION MRY
D9/5/17 517727ECP/D - ADD DIMENSION TOLERANCES MRY
EYRM SECNARELOT EDALB DDA - D/PCE65502591/52/3
17.02 0.89
0.670 0.035
[]
92.08 1.59
3.625 0.063
[]
53.98
[2.125]
76.19 1.590
2.999 0.063
[]
65.07 1.59
2.562 0.063
[]
22.730.89
0.895 0.035
[]
92.081.60
3.625 0.063
[]
73.861.60
2.908 0.063
[]
70.321.60
2.768 0.063
[]
53.98
[2.125]
25.270.89
0.995 0.035
[]
110.311.60
4.343 0.063
[]
87.371.60
3.440 0.063
[]
69.831.60
2.749 0.063
[]
53.16
[2.093]
113.49 1.60
4.468 0.063
[]
92.821.60
3.654 0.063
[]
70.861.60
2.790 0.063
[] 56.34
[2.218]
50.800.89
2.000 0.035
[]
157.15 1.60
6.187 0.063
[]
126.93 1.60
4.997 0.063
[]
87.30 1.60
3.437 0.063
[] 56.34
[2.218]
8.73
[0.344]
8.74
[0.344]
10.41
[0.410]
10.41
[0.410]
13.46
[0.530]
3.18 0.15
0.125 0.006
[]
4.75 0.15
0.187 0.006
[]
6.35 0.15
0.250 0.006
[]
6.35 0.15
0.250 0.006
[]
9.53 0.15
0.375 0.006
[]
63.50 0.381
2.500 0.015
[]
50.800.381
2.000 0.015
[]
38.100.381
1.500 0.015
[]
30.940.381
1.218 0.015
[]
25.40 0.381
1.000 0.015
[]
38.100.89
1.500 0.035
[]
35–100A
125–200A
225–400A450–600A
700–800A
14.29
[0.563]
10.51
[0.414]
19.18
[0.755]
21.39
[0.842]
33.27
[1.310]
CHICAGO, ILLINOIS 60631
3RD ANGLE
PROJECTION
EOL-L50QS000
Littelfuse
®
REVISION
DRWG NO.
TITLE
C
DRWDATE
GRAMS/PIECE
FINISH GOOD WT
MYORK8/28/2015
HSINIFCEPS LTAM
UNLESS OTHERWISE SPECIFIED, DIMENSIONS ARE IN MILLIMETERS, DIMENSIONS IN
BRACKETS [ ] ARE INCHES DIMENSIONING AND DO NOT INCLUDE PLATIN G. TOLERANCING
TO BE INTERPRETED IN ACCORDANCE WITH ANSI Y14.5M-1994
DENOTES CRITICAL CHARACTERISTICS.
DENOTES CPK DIMENSIONS, -MINIMUM CPK VALUE
DENOTES A CHARACTERISTIC THAT PROVIDES AN INDICATION
OF PROCESS PERFORMANCE. PROCEDURE FOR MEASUREMENT
AND TRACKING TO BE DEFINED IN
LITTELFUSE INSPECTION INSTRUCTIONS.
DENOTES CP DIMENSIONS, -MINIMUM CP VALUE
MUST BE WITHIN THE DIMENSIONAL LIMITATIONS
SHOWN ON DRAWING AND INITIALLY LOCATED TO
ALLOW FOR MAXIMUM TOOL LIFE.
CPK
CP
SHEET 1 OF 1
SCALE
L50QS SERIES OUTLINE
NTS
REVISION
REVDATE DESCRIPTION
A3/23/16515693GCP - RELEASE MRY
BYRM NOISIVER TEEHS ATAD GHC - D/PCE72361561/6/9
C6/6/17 517424ECP/D - REMOVE DATA SHEET REVISION MRY
D9/5/17 517727ECP/D - ADD DIMENSION TOLERANCES MRY
EYRM SECNARELOT EDALB DDA - D/PCE65502591/52/3
17.02 0.89
0.670 0.035
[]
92.08 1.59
3.625 0.063
[]
53.98
[2.125]
76.19 1.590
2.999 0.063
[]
65.07 1.59
2.562 0.063
[]
22.730.89
0.895 0.035
[]
92.081.60
3.625 0.063
[]
73.861.60
2.908 0.063
[]
70.321.60
2.768 0.063
[]
53.98
[2.125]
25.270.89
0.995 0.035
[]
110.311.60
4.343 0.063
[]
87.371.60
3.440 0.063
[]
69.831.60
2.749 0.063
[]
53.16
[2.093]
113.49 1.60
4.468 0.063
[]
92.821.60
3.654 0.063
[]
70.861.60
2.790 0.063
[] 56.34
[2.218]
50.800.89
2.000 0.035
[]
157.15 1.60
6.187 0.063
[]
126.93 1.60
4.997 0.063
[]
87.30 1.60
3.437 0.063
[] 56.34
[2.218]
8.73
[0.344]
8.74
[0.344]
10.41
[0.410]
10.41
[0.410]
13.46
[0.530]
3.18 0.15
0.125 0.006
[]
4.75 0.15
0.187 0.006
[]
6.35 0.15
0.250 0.006
[]
6.35 0.15
0.250 0.006
[]
9.53 0.15
0.375 0.006
[]
63.50 0.381
2.500 0.015
[]
50.800.381
2.000 0.015
[]
38.100.381
1.500 0.015
[]
30.940.381
1.218 0.015
[]
25.40 0.381
1.000 0.015
[]
38.100.89
1.500 0.035
[]
35–100A 125–200A
225–400A450–600A
700–800A
14.29
[0.563] 10.51
[0.414]
19.18
[0.755]
21.39
[0.842]
33.27
[1.310]
CHICAGO, ILLINOIS 60631
3RD ANGLE
PROJECTION
EOL-L50QS000
Littelfuse
®
REVISION
DRWG NO.
TITLE
C
DRWDATE
GRAMS/PIECE
FINISH GOOD WT
MYORK8/28/2015
HSINIFCEPS LTAM
UNLESS OTHERWISE SPECIFIED, DIMENSIONS ARE IN MILLIMETERS, DIMENSIONS IN
BRACKETS [ ] ARE INCHES DIMENSIONING AND DO NOT INCLUDE PLATIN G. TOLERANCING
TO BE INTERPRETED IN ACCORDANCE WITH ANSI Y14.5M-1994
DENOTES CRITICAL CHARACTERISTICS.
DENOTES CPK DIMENSIONS, -MINIMUM CPK VALUE
DENOTES A CHARACTERISTIC THAT PROVIDES AN INDICATION
OF PROCESS PERFORMANCE. PROCEDURE FOR MEASUREMENT
AND TRACKING TO BE DEFINED IN
LITTELFUSE INSPECTION INSTRUCTIONS.
DENOTES CP DIMENSIONS, -MINIMUM CP VALUE
MUST BE WITHIN THE DIMENSIONAL LIMITATIONS
SHOWN ON DRAWING AND INITIALLY LOCATED TO
ALLOW FOR MAXIMUM TOOL LIFE.
CPK
CP
SHEET 1 OF 1
SCALE
L50QS SERIES OUTLINE
NTS
REVISION
REVDATE DESCRIPTION
A3/23/16515693GCP - RELEASE MRY
BYRM NOISIVER TEEHS ATAD GHC - D/PCE72361561/6/9
C6/6/17 517424ECP/D - REMOVE DATA SHEET REVISION MRY
D9/5/17 517727ECP/D - ADD DIMENSION TOLERANCES MRY
EYRM SECNARELOT EDALB DDA - D/PCE65502591/52/3
17.02 0.89
0.670 0.035
[]
92.08 1.59
3.625 0.063
[]
53.98
[2.125]
76.19 1.590
2.999 0.063
[]
65.07 1.59
2.562 0.063
[]
22.730.89
0.895 0.035
[]
92.081.60
3.625 0.063
[]
73.861.60
2.908 0.063
[]
70.321.60
2.768 0.063
[]
53.98
[2.125]
25.270.89
0.995 0.035
[]
110.311.60
4.343 0.063
[]
87.371.60
3.440 0.063
[]
69.831.60
2.749 0.063
[]
53.16
[2.093]
113.49 1.60
4.468 0.063
[]
92.821.60
3.654 0.063
[]
70.861.60
2.790 0.063
[] 56.34
[2.218]
50.800.89
2.000 0.035
[]
157.15 1.60
6.187 0.063
[]
126.93 1.60
4.997 0.063
[]
87.30 1.60
3.437 0.063
[] 56.34
[2.218]
8.73
[0.344]
8.74
[0.344]
10.41
[0.410]
10.41
[0.410]
13.46
[0.530]
3.18 0.15
0.125 0.006
[]
4.75 0.15
0.187 0.006
[]
6.35 0.15
0.250 0.006
[]
6.35 0.15
0.250 0.006
[]
9.53 0.15
0.375 0.006
[]
63.50 0.381
2.500 0.015
[]
50.800.381
2.000 0.015
[]
38.100.381
1.500 0.015
[]
30.940.381
1.218 0.015
[]
25.40 0.381
1.000 0.015
[]
38.100.89
1.500 0.035
[]
35–100A
125–200A
225–400A450–600A
700–800A
14.29
[0.563]
10.51
[0.414]
19.18
[0.755]
21.39
[0.842]
33.27
[1.310]
CHICAGO, ILLINOIS 60631
3RD ANGLE
PROJECTION
EOL-L50QS000
Littelfuse
®
REVISION
DRWG NO.
TITLE
C
DRWDATE
GRAMS/PIECE
FINISH GOOD WT
MYORK8/28/2015
HSINIFCEPS LTAM
UNLESS OTHERWISE SPECIFIED, DIMENSIONS ARE IN MILLIMETERS, DIMENSIONS IN
BRACKETS [ ] ARE INCHES DIMENSIONING AND DO NOT INCLUDE PLATIN G. TOLERANCING
TO BE INTERPRETED IN ACCORDANCE WITH ANSI Y14.5M-1994
DENOTES CRITICAL CHARACTERISTICS.
DENOTES CPK DIMENSIONS, -MINIMUM CPK VALUE
DENOTES A CHARACTERISTIC THAT PROVIDES AN INDICATION
OF PROCESS PERFORMANCE. PROCEDURE FOR MEASUREMENT
AND TRACKING TO BE DEFINED IN
LITTELFUSE INSPECTION INSTRUCTIONS.
DENOTES CP DIMENSIONS, -MINIMUM CP VALUE
MUST BE WITHIN THE DIMENSIONAL LIMITATIONS
SHOWN ON DRAWING AND INITIALLY LOCATED TO
ALLOW FOR MAXIMUM TOOL LIFE.
CPK
CP
SHEET 1 OF 1
SCALE
L50QS SERIES OUTLINE
NTS
REVISION
REVDATE DESCRIPTION
A3/23/16515693GCP - RELEASE MRY
BYRM NOISIVER TEEHS ATAD GHC - D/PCE72361561/6/9
C6/6/17 517424ECP/D - REMOVE DATA SHEET REVISION MRY
D9/5/17 517727ECP/D - ADD DIMENSION TOLERANCES MRY
EYRM SECNARELOT EDALB DDA - D/PCE65502591/52/3
17.02 0.89
0.670 0.035
[]
92.08 1.59
3.625 0.063
[]
53.98
[2.125]
76.19 1.590
2.999 0.063
[]
65.07 1.59
2.562 0.063
[]
22.730.89
0.895 0.035
[]
92.081.60
3.625 0.063
[]
73.861.60
2.908 0.063
[]
70.321.60
2.768 0.063
[]
53.98
[2.125]
25.270.89
0.995 0.035
[]
110.311.60
4.343 0.063
[]
87.371.60
3.440 0.063
[]
69.831.60
2.749 0.063
[]
53.16
[2.093]
113.49 1.60
4.468 0.063
[]
92.821.60
3.654 0.063
[]
70.861.60
2.790 0.063
[] 56.34
[2.218]
50.800.89
2.000 0.035
[]
157.15 1.60
6.187 0.063
[]
126.93 1.60
4.997 0.063
[]
87.30 1.60
3.437 0.063
[] 56.34
[2.218]
8.73
[0.344]
8.74
[0.344]
10.41
[0.410]
10.41
[0.410]
13.46
[0.530]
3.18 0.15
0.125 0.006
[]
4.75 0.15
0.187 0.006
[]
6.35 0.15
0.250 0.006
[]
6.35 0.15
0.250 0.006
[]
9.53 0.15
0.375 0.006
[]
63.50 0.381
2.500 0.015
[]
50.800.381
2.000 0.015
[]
38.100.381
1.500 0.015
[]
30.940.381
1.218 0.015
[]
25.40 0.381
1.000 0.015
[]
38.100.89
1.500 0.035
[]
35–100A 125–200A
225–400A450–600A
700–800A
14.29
[0.563] 10.51
[0.414]
19.18
[0.755]
21.39
[0.842]
33.27
[1.310]
CHICAGO, ILLINOIS 60631
3RD ANGLE
PROJECTION
EOL-L50QS000
Littelfuse
®
REVISION
DRWG NO.
TITLE
C
DRWDATE
GRAMS/PIECE
FINISH GOOD WT
MYORK8/28/2015
HSINIFCEPS LTAM
UNLESS OTHERWISE SPECIFIED, DIMENSIONS ARE IN MILLIMETERS, DIMENSIONS IN
BRACKETS [ ] ARE INCHES DIMENSIONING AND DO NOT INCLUDE PLATIN G. TOLERANCING
TO BE INTERPRETED IN ACCORDANCE WITH ANSI Y14.5M-1994
DENOTES CRITICAL CHARACTERISTICS.
DENOTES CPK DIMENSIONS, -MINIMUM CPK VALUE
DENOTES A CHARACTERISTIC THAT PROVIDES AN INDICATION
OF PROCESS PERFORMANCE. PROCEDURE FOR MEASUREMENT
AND TRACKING TO BE DEFINED IN
LITTELFUSE INSPECTION INSTRUCTIONS.
DENOTES CP DIMENSIONS, -MINIMUM CP VALUE
MUST BE WITHIN THE DIMENSIONAL LIMITATIONS
SHOWN ON DRAWING AND INITIALLY LOCATED TO
ALLOW FOR MAXIMUM TOOL LIFE.
CPK
CP
SHEET 1 OF 1
SCALE
L50QS SERIES OUTLINE
NTS
REVISION
REVDATE DESCRIPTION
A3/23/16515693GCP - RELEASE MRY
BYRM NOISIVER TEEHS ATAD GHC - D/PCE72361561/6/9
C6/6/17 517424ECP/D - REMOVE DATA SHEET REVISION MRY
D9/5/17 517727ECP/D - ADD DIMENSION TOLERANCES MRY
EYRM SECNARELOT EDALB DDA - D/PCE65502591/52/3
17.02 0.89
0.670 0.035
[]
92.08 1.59
3.625 0.063
[]
53.98
[2.125]
76.19 1.590
2.999 0.063
[]
65.07 1.59
2.562 0.063
[]
22.730.89
0.895 0.035
[]
92.081.60
3.625 0.063
[]
73.861.60
2.908 0.063
[]
70.321.60
2.768 0.063
[]
53.98
[2.125]
25.270.89
0.995 0.035
[]
110.311.60
4.343 0.063
[]
87.371.60
3.440 0.063
[]
69.831.60
2.749 0.063
[]
53.16
[2.093]
113.49 1.60
4.468 0.063
[]
92.821.60
3.654 0.063
[]
70.861.60
2.790 0.063
[] 56.34
[2.218]
50.800.89
2.000 0.035
[]
157.15 1.60
6.187 0.063
[]
126.93 1.60
4.997 0.063
[]
87.30 1.60
3.437 0.063
[] 56.34
[2.218]
8.73
[0.344]
8.74
[0.344]
10.41
[0.410]
10.41
[0.410]
13.46
[0.530]
3.18 0.15
0.125 0.006
[]
4.75 0.15
0.187 0.006
[]
6.35 0.15
0.250 0.006
[]
6.35 0.15
0.250 0.006
[]
9.53 0.15
0.375 0.006
[]
63.50 0.381
2.500 0.015
[]
50.800.381
2.000 0.015
[]
38.100.381
1.500 0.015
[]
30.940.381
1.218 0.015
[]
25.40 0.381
1.000 0.015
[]
38.100.89
1.500 0.035
[]
35–100A 125–200A
225–400A
450–600A
700–800A
14.29
[0.563] 10.51
[0.414]
19.18
[0.755]
21.39
[0.842]
33.27
[1.310]
CHICAGO, ILLINOIS 60631
3RD ANGLE
PROJECTION
EOL-L50QS000
Littelfuse
®
REVISION
DRWG NO.
TITLE
C
DRWDATE
GRAMS/PIECE
FINISH GOOD WT
MYORK8/28/2015
HSINIFCEPS LTAM
UNLESS OTHERWISE SPECIFIED, DIMENSIONS ARE IN MILLIMETERS, DIMENSIONS IN
BRACKETS [ ] ARE INCHES DIMENSIONING AND DO NOT INCLUDE PLATIN G. TOLERANCING
TO BE INTERPRETED IN ACCORDANCE WITH ANSI Y14.5M-1994
DENOTES CRITICAL CHARACTERISTICS.
DENOTES CPK DIMENSIONS, -MINIMUM CPK VALUE
DENOTES A CHARACTERISTIC THAT PROVIDES AN INDICATION
OF PROCESS PERFORMANCE. PROCEDURE FOR MEASUREMENT
AND TRACKING TO BE DEFINED IN
LITTELFUSE INSPECTION INSTRUCTIONS.
DENOTES CP DIMENSIONS, -MINIMUM CP VALUE
MUST BE WITHIN THE DIMENSIONAL LIMITATIONS
SHOWN ON DRAWING AND INITIALLY LOCATED TO
ALLOW FOR MAXIMUM TOOL LIFE.
CPK
CP
SHEET 1 OF 1
SCALE
L50QS SERIES OUTLINE
NTS
REVISION
REVDATE DESCRIPTION
A3/23/16515693GCP - RELEASE MRY
BYRM NOISIVER TEEHS ATAD GHC - D/PCE72361561/6/9
C6/6/17 517424ECP/D - REMOVE DATA SHEET REVISION MRY
D9/5/17 517727ECP/D - ADD DIMENSION TOLERANCES MRY
EYRM SECNARELOT EDALB DDA - D/PCE65502591/52/3
17.02 0.89
0.670 0.035
[]
92.08 1.59
3.625 0.063
[]
53.98
[2.125]
76.19 1.590
2.999 0.063
[]
65.07 1.59
2.562 0.063
[]
22.730.89
0.895 0.035
[]
92.081.60
3.625 0.063
[]
73.861.60
2.908 0.063
[]
70.321.60
2.768 0.063
[]
53.98
[2.125]
25.270.89
0.995 0.035
[]
110.311.60
4.343 0.063
[]
87.371.60
3.440 0.063
[]
69.831.60
2.749 0.063
[]
53.16
[2.093]
113
.49 1.60
4.468 0.063
[]
92.821.60
3.654 0.063
[]
70.861.60
2.790 0.063
[] 56.34
[2.218]
50.800.89
2.000 0.035
[]
157.15 1.60
6.187 0.063
[]
126.93 1.60
4.997 0.063
[]
87.30 1.60
3.437 0.063
[] 56.34
[2.218]
8.73
[0.344]
8.74
[0.344]
10.41
[0.410]
10.41
[0.410]
13.46
[0.530]
3.18 0.15
0.125 0.006
[]
4.75 0.15
0.187 0.006
[]
6.35 0.15
0.250 0.006
[]
6.35 0.15
0.250 0.006
[]
9.53 0.15
0.375 0.006
[]
63.50 0.381
2.500 0.015
[]
50.800.381
2.000 0.015
[]
38.100.381
1.500 0.015
[]
30.940.381
1.218 0.015
[]
25.40 0.381
1.000 0.015
[]
38.100.89
1.500 0.035
[]
35–100A 125–200A
225–400A
450–600A
700–800A
14.29
[0.563] 10.51
[0.414]
19.18
[0.755]
21.39
[0.842]
33.27
[1.310]
CHICAGO, ILLINOIS 60631
3RD ANGLE
PROJECTION
EOL-L50QS000
Littelfuse
®
REVISION
DRWG NO.
TITLE
C
DRWDATE
GRAMS/PIECE
FINISH GOOD WT
MYORK8/28/2015
HSINIFCEPS LTAM
UNLESS OTHERWISE SPECIFIED, DIMENSIONS ARE IN MILLIMETERS, DIMENSIONS IN
BRACKETS [ ] ARE INCHES DIMENSIONING AND DO NOT INCLUDE PLATIN G. TOLERANCING
TO BE INTERPRETED IN ACCORDANCE WITH ANSI Y14.5M-1994
DENOTES CRITICAL CHARACTERISTICS.
DENOTES CPK DIMENSIONS, -MINIMUM CPK VALUE
DENOTES A CHARACTERISTIC THAT PROVIDES AN INDICATION
OF PROCESS PERFORMANCE. PROCEDURE FOR MEASUREMENT
AND TRACKING TO BE DEFINED IN
LITTELFUSE INSPECTION INSTRUCTIONS.
DENOTES CP DIMENSIONS, -MINIMUM CP VALUE
MUST BE WITHIN THE DIMENSIONAL LIMITATIONS
SHOWN ON DRAWING AND INITIALLY LOCATED TO
ALLOW FOR MAXIMUM TOOL LIFE.
CPK
CP
SHEET 1 OF 1
SCALE
L50QS SERIES OUTLINE
NTS
REVISION
REVDATE DESCRIPTION
A3/23/16515693GCP - RELEASE MRY
BYRM NOISIVER TEEHS ATAD GHC - D/PCE72361561/6/9
C6/6/17 517424ECP/D - REMOVE DATA SHEET REVISION MRY
D9/5/17 517727ECP/D - ADD DIMENSION TOLERANCES MRY
EYRM SECNARELOT EDALB DDA - D/PCE65502591/52/3
17.02 0.89
0.670 0.035
[]
92.08 1.59
3.625 0.063
[]
53.98
[2.125]
76.19 1.590
2.999 0.063
[]
65.07 1.59
2.562 0.063
[]
22.730.89
0.895 0.035
[]
92.081.60
3.625 0.063
[]
73.861.60
2.908 0.063
[]
70.321.60
2.768 0.063
[]
53.98
[2.125]
25.270.89
0.995 0.035
[]
110.311.60
4.343 0.063
[]
87.371.60
3.440 0.063
[]
69.831.60
2.749 0.063
[]
53.16
[2.093]
113.49 1.60
4.468 0.063
[]
92.821.60
3.654 0.063
[]
70.861.60
2.790 0.063
[] 56.34
[2.218]
50.800.89
2.000 0.035
[]
157.15 1.60
6.187 0.063
[]
126.93 1.60
4.997 0.063
[]
87.30 1.60
3.437 0.063
[] 56.34
[2.218]
8.73
[0.344]
8.74
[0.344]
10.41
[0.410]
10.41
[0.410]
13.46
[0.530]
3.18 0.15
0.125 0.006
[]
4.75 0.15
0.187 0.006
[]
6.35 0.15
0.250 0.006
[]
6.35 0.15
0.250 0.006
[]
9.53 0.15
0.375 0.006
[]
63.50 0.381
2.500 0.015
[]
50.800.381
2.000 0.015
[]
38.100.381
1.500 0.015
[]
30.940.381
1.218 0.015
[]
25.40 0.381
1.000 0.015
[]
38.100.89
1.500 0.035
[]
35–100A 125–200A
225–400A450–600A
700–800A
14.29
[0.563] 10.51
[0.414]
19.18
[0.755]
21.39
[0.842]
33.27
[1.310]
POWR-SPEED® Fuses
Littelfuse.com/powr-speed
© 2019 Littelfuse, Inc.
25 of 52
L50QS SERIES HIGH-SPEED ROUND BODY
cNusCEéE-
- . .
: [45mm '
: POWR-GARD'
' mumm-
ms! ,
‘,
'lunmg
L70 xx .T
% litleltuse'
Littelfuse.com/L70S
© 2019 Littelfuse, Inc.
Rev: 073119
1 of 6
POWR-GARD® Fuse
L70S SERIES HIGH-SPEED ROUND BODY
Specifi cations
Voltage Rating 700 V ac
650 V dc
Amperage Rating 10, 15, 20, 25, 30, 35, 40, 50, 60, 70, 80,
90, 100, 125, 150, 175, 200, 225, 250, 300,
350, 400, 450, 500, 600, 700, 800
Interrupting Rating Ac: 200 kAIC
Dc: 20 kAIC
Material Body: melamine
Terminals: copper (silver plated)
Mounting Type Cylindrical (10–0 A)
Bolted tags (35–800 A)
Operating Temperature -55 °C to +125 °C
Storage Temperature Up to 35 °C with relative humidity < 65 %
Approvals UL Recognized (File: E71611)
CSA Recognized (File: LR29862)
Environmental RoHS Compliant
Country of Origin Mexico
Description
Littelfuse L70S series high-speed fuses are designed
to protect today’s equipment and systems, and are
manufactured with Littelfuse-developed technology that
sets tomorrow’s standards for accuracy, consistent quality,
reliability, and predictable performance.
Littelfuse engineers have redefined high-speed fuse
technology by using advanced metallurgical, polymer,
and materials research, mathematical modeling, and
computerized statistical analysis.
Features/Benefi ts
Extremely current limiting
Low watt losses
Controlled transient over-voltages
UL Recognized
Applications
Ac and dc drives
Dc common bus protection
Power converters
UPS
Soft-starters
Recommended Fuse Block
LSCR001 (35–100 A)
LSCR002 (125–800 A)
Web Resources
Download technical documents: Littelfuse.com/L70S
Note: high-speed fuses are designed for fi xed installations. They are not
intended for use in moving vehicle applications.
700 V ac • Very Fast Acting • 650 V dc • 10–800 A
SERIES AMP CATALOG NUMBER ORDERING NUMBER
L70S 10 L70S010 L70S010.T
L70S 500 L70S500 L70S500.X
Part Numbering System
L70S xxx .T
Package Quantity
Series
Ampere Code
(3 digit minimum amperage
in decimal form)
Refer to Pack Qty.
Column in Ordering
Information Table
HF
POWR-SPEED® Fuses
Littelfuse.com/powr-speed
© 2019 Littelfuse, Inc.
26 of 52
L70S SERIES HIGH-SPEED ROUND BODY
tleltuse‘
u \ Am,
Littelfuse.com/L70S
© 2019 Littelfuse, Inc.
Rev: 073119
2 of 6
POWR-GARD® Fuse
L70S SERIES HIGH-SPEED ROUND BODY
Electrical Specifi cations
CATALOG
NUMBER
AMPERAGE
RATING
VOLTAGE
RATING
INTERRUPT
RATING MELTING
(PRE-ARC)
I
2
T (A
2
s)
TOTAL
CLEARING
I
2
T (A
2
s)
TOTAL
CLEARING
I
2
T (A
2
s)
TOTAL
CLEARING
I
2
T (A
2
s)
WATTS LOSS
AT 100 % RATED
CURRENT
WATTS LOSS
AT 80 % RATED
CURRENT
AC DC AC DC 100 kA
@ 700 V AC
200 kA
@ 700 V AC
20 kA
@ 650 V DC (W) (W)
L70S010 10 700 650 200 kA 20 kA 21 160 173 346 2 1
L70S015 15 700 650 200 kA 20 kA 34 330 355 270 2 2
L70S020 20 700 650 200 kA 20 kA 48 550 599 300 5 2
L70S025 25 700 650 200 kA 20 kA 62 810 900 340 7 4
L70S030 30 700 650 200 kA 20 kA 77 1,130 1,220 417 10 5
L70S035 35 700 650 200 kA 20 kA 110 1,470 1,500 500 12 6
L70S040 40 700 650 200 kA 20 kA 150 1,830 2,000 660 13 7
L70S050 50 700 650 200 kA 20 kA 250 2,670 3,200 1,070 16 9
L70S060 60 700 650 200 kA 20 kA 380 3,646 4,674 1,572 18 9
L70S070 70 700 650 200 kA 20 kA 545 4,800 6,000 1,970 16 9
L70S080 80 700 650 200 kA 20 kA 745 6,180 7,55 0 2,380 21 11
L70S090 90 700 650 200 kA 20 kA 990 7, 65 0 9,250 2,830 25 13
L70S100 100 700 650 200 kA 20 kA 1,266 9,407 11,117 3,266 29 14
L70S125 125 700 650 200 kA 20 kA 2,150 14,700 17,5 50 4,900 33 17
L70S150 150 700 650 200 kA 20 kA 3,280 21,250 25,700 6,800 51 24
L70S175 175 700 650 200 kA 20 kA 4,700 28,750 34,800 9,000 63 28
L70S200 200 700 650 200 kA 20 kA 6,411 37, 30 0 45,583 11,447 75 33
L70S225 225 700 650 200 kA 20 kA 8,000 46,500 57,000 16,000 43 24
L70S250 250 700 650 200 kA 20 kA 9,900 58,000 69,500 22,000 49 27
L70S300 300 700 650 200 kA 20 kA 14,000 83,000 9 7,70 0 37,500 60 33
L70S350 350 700 650 200 kA 20 kA 19,000 113,000 131,000 59,000 71 36
L70S400 400 700 650 200 kA 20 kA 24,373 147, 29 0 169,000 87,875 107 49
L70S450 450 700 650 200 kA 20 kA 33,000 191,000 219,000 119,000 85 47
L70S500 500 700 650 200 kA 20 kA 44,200 240,000 275,000 155,000 92 49
L70S600 600 700 650 200 kA 20 kA 72,000 370,250 405,000 24 6,182 106 56
L70S700 700 700 650 200 kA 20 kA 110,000 526,000 573,000 255,000 128 67
L70S800 800 700 650 200 kA 20 kA 15 7,0 82 735,330 762,333 262,949 156 78
POWR-SPEED® Fuses
Littelfuse.com/powr-speed
© 2019 Littelfuse, Inc.
27 of 52
L70S SERIES HIGH-SPEED ROUND BODY
% litleltuse‘
Littelfuse.com/L70S
© 2019 Littelfuse, Inc.
Rev: 073119
3 of 6
POWR-GARD® Fuse
L70S SERIES HIGH-SPEED ROUND BODY
SERIES AMPERAGE
RATING
AMP
CODE
CATALOG
NUMBER
ORDERING
NUMBER
PACK
QUANTITY UPC
L70S 10 010 L70S010 L70S010.T 10 Pcs/ Box 07945810161
L70S 15 015 L70S015 L70S015.T 10 Pcs/ Box 07945810163
L70S 20 020 L70S020 L70S020.T 10 Pcs/ Box 07945810164
L70S 25 025 L70S025 L70S025.T 10 Pcs/ Box 07945810165
L70S 30 030 L70S030 L70S030.T 10 Pcs/ Box 07945810166
L70S 35 035 L70S035 L70S035.T 10 Pcs/ Box 07945810152
L70S 40 040 L70S040 L70S040.T 10 Pcs/ Box 07945810167
L70S 50 050 L70S050 L70S050.T 10 Pcs/ Box 07945810168
L70S 60 060 L70S060 L70S060.T 10 Pcs/ Box 07945810169
L70S 70 070 L70S070 L70S070.V 5 Pcs/ Box 07945810170
L70S 80 080 L70S080 L70S080.V 5 Pcs/ Box 07945810171
L70S 90 090 L70S090 L70S090.V 5 Pcs/ Box 07945810172
L70S 100 100 L70S100 L70S100.V 5 Pcs/ Box 07945810173
L70S 125 125 L70S125 L70S125.V 5 Pcs/ Box 07945810174
L70S 150 150 L70S150 L70S150.V 5 Pcs/ Box 07945810175
L70S 175 175 L70S175 L70S175.V 5 Pcs/ Box 07945810176
L70S 200 200 L70S200 L70S200.V 5 Pcs/ Box 07945810177
L70S 225 225 L70S225 L70S225.V 5 Pcs/ Box 07945810188
L70S 250 250 L70S250 L70S250.V 5 Pcs/ Box 07945810178
L70S 300 300 L70S300 L70S300.V 5 Pcs/ Box 07945810179
L70S 350 350 L70S350 L70S350.V 5 Pcs/ Box 07945810180
L70S 400 400 L70S400 L70S400.V 5 Pcs/ Box 07945810181
L70S 450 450 L70S450 L70S450.X 1 Pc/ Box 07945810182
L70S 500 500 L70S500 L70S500.X 1 Pc/ Box 07945810183
L70S 600 600 L70S600 L70S600.X 1 Pc/ Box 07945810184
L70S 700 700 L70S700 L70S700.X 1 Pc/ Box 07945810185
L70S 800 800 L70S800 L70S800.X 1 Pc/ Box 07945810186
Ordering Information
Dimensions
AMPERE
RATING
FIGURE
NO.
DIMENSIONS INCHES (mm)
A B C D E F G H J
10 – 30 12 (50.8) —1⁄2 (12.7) 9⁄16 (14.3) —————
31 – 60 2 27⁄8 (73.0) 37⁄16 (87.3) 33⁄4 (95.2) 43⁄8 (111.1) 1 (25.4) 43⁄64 (17.1) 11 ⁄32 (8.7) 1⁄8 (3.2) —
61 – 100 2 2 7⁄8 (73.0) 39⁄16 (90.5) 311⁄16 (93.7) 43⁄8 (111.1) 17⁄32 (31.0) 29⁄32 (22.9) 5⁄16 (7.9) 3⁄16 (4.8) —
101 – 200 2 227⁄32 (72.2) 317 ⁄32 (89.7) 45⁄32 (105.6) 53⁄32 (129.4) 11⁄2 (38.1) 1 (25.4) 13 ⁄32 (10.3) 1⁄4 (6.4) —
201 – 400 2 227⁄32 (72.2) 317⁄32 (89.7) 45⁄32 (105.6) 53⁄32 (129.4) 2 (50.8) 11⁄2 (38.1) 13 ⁄32 (10.3) 1⁄4 (6.4) —
401 – 600 2 2 27⁄32 (72.2) 429⁄32 (124.6) 51⁄4 (133.4) 73⁄32 (180.2) 21⁄2 (63.5) 2 (50.8) 17⁄32 (13.5) 3⁄8 (9.5) —
601 – 800 3 3 5⁄16 (84.1) 55⁄16 (134.9) 613⁄16 (173.0) — 27⁄8 (73.0) 2 (50.8) 5⁄8 (15.9) 3⁄8 (9.5) 5⁄16 (7.9)
F
GA
B
CE
J
H
Fig. 4
A
B
C
D
F
G
E
H
Fig. 3
A
C
D
Fig. 1
Figure 1 Figure 2 Figure 3
POWR-SPEED® Fuses
Littelfuse.com/powr-speed
© 2019 Littelfuse, Inc.
28 of 52
L70S SERIES HIGH-SPEED ROUND BODY
@C€ twos-
% litleltuse'
bperluseADphad \ Answeumhvemd
Littelfuse.com/L50S
© 2019 Littelfuse, Inc.
Rev: 073119
1 of 6
POWR-GARD® Fuse
L50S SERIES HIGH-SPEED ROUND BODY
Specifi cations
Voltage Rating 500 V ac
450 V dc
Amperage Rating 10, 12, 15, 20, 25, 30, 35, 40, 50, 60, 70, 80,
90, 100, 125, 150, 175, 200, 225, 250, 275,
300, 350, 400, 450, 500, 550, 600, 700, 800
Interrupting Rating Ac: 200 kAIC
Dc: 20 kAIC
Material Body: melamine
Terminals: copper (silver plated)
Mounting Type Cylindrical (10–30 A)
Bolted tags (35–800 A)
Operating Temperature -55 °C to +125 °C
Storage Temperature
Up to 35 °C with relative humidity less than 65%
Approvals UL Recognized (File: E71611)
CSA Recognized (File: LR29862)
Environmental RoHS Compliant
Country of Origin Mexico
Description
Littelfuse L50S series high-speed fuses are designed
to protect today’s equipment and systems, and are
manufactured with Littelfuse-developed technology that
sets tomorrow’s standards for accuracy, consistent quality,
reliability, and predictable performance.
Littelfuse engineers have redefined high-speed fuse
technology by using advanced metallurgical, polymer,
and materials research, mathematical modeling, and
computerized statistical analysis.
Features/Benefi ts
Extremely current limiting
Low watt losses
Controlled transient over-voltages
UL Recognized
Applications
Ac and dc drives
Dc common bus protection
Power converters
UPS
Soft-starters Recommended Fuse Holder
LSCR001 (35–200 A)
LSCR002 (225–800 A)
Web Resources
Download technical documents: Littelfuse.com/L50S
Note: high-speed fuses are designed for fi xed installations. They are not
intended for use in moving vehicle applications.
500 V ac • 450 V dc • Very Fast Acting • 10–800 A
SERIES AMP CATALOG NUMBER ORDERING NUMBER
L50S 10 L50S010 L50S010.T
L50S 500 L50S500 L50S500.X
Part Numbering System
L50S xxx .T
Package Quantity
Series
Ampere Code
(3 digit minimum
amperage in decimal form)
Refer to Pack Qty.
Column in Ordering
Information Table
POWR-SPEED® Fuses
Littelfuse.com/powr-speed
© 2019 Littelfuse, Inc.
29 of 52
L50S SERIES HIGH-SPEED ROUND BODY
tleltuse‘
u \ Am,
Littelfuse.com/L50S
© 2019 Littelfuse, Inc.
Rev: 073119
2 of 6
POWR-GARD® Fuse
L50S SERIES HIGH-SPEED ROUND BODY
Electrical Specifi cations
CATALOG
NUMBER
AMPERAGE
RATING
VOLTAGE
RATING
INTERRUPT
RATING MELTING
(PRE-ARC)
I
2
T (A
2
s)
TOTAL
CLEARING
I
2
T (A
2
s)
TOTAL
CLEARING
I
2
T (A
2
s)
TOTAL
CLEARING
I
2
T (A
2
s)
WATTS LOSS
AT 100 % RATED
CURRENT
WATTS LOSS
AT 80 % RATED
CURRENT
AC DC AC DC 100 kA
@ 500 V AC
200 kA
@ 500 V AC
20 kA
@ 450 V DC (W) (W)
L50S010 10 500 450 200 kA 20 kA 21 112 128 85 2 1
L50S012 12 500 450 200 kA 20 kA 26 149 170 97 2 1
L50S015 15 500 450 200 kA 20 kA 34 222 250 116 2 2
L50S020 20 500 450 200 kA 20 kA 48 363 400 143 5 3
L50S025 25 500 450 200 kA 20 kA 62 528 600 170 7 4
L50S030 30 500 450 200 kA 20 kA 77 707 820 193 10 5
L50S035 35 500 450 200 kA 20 kA 130 1,120 1,210 400 6 3
L50S040 40 500 450 200 kA 20 kA 161 1,420 1,550 525 7 4
L50S050 50 500 450 200 kA 20 kA 222 2,150 2,360 867 11 6
L50S060 60 500 450 200 kA 20 kA 259 3,016 3,300 1,287 13 7
L50S070 70 500 450 200 kA 20 kA 420 4,100 4,930 1,670 17 10
L50S080 80 500 450 200 kA 20 kA 554 5,300 6,950 2,240 19 10
L50S090 90 500 450 200 kA 20 kA 677 6,750 9,500 2,900 24 13
L50S100 100 500 450 200 kA 20 kA 807 8,273 12,600 3,626 30 16
L50S125 125 500 450 200 kA 20 kA 1,290 13,100 19,000 5,150 22 12
L50S150 150 500 450 200 kA 20 kA 2,504 19,100 26,500 6,700 27 15
L50S175 175 500 450 200 kA 20 kA 3,224 26,300 35,000 8,700 33 17
L50S200 200 500 450 200 kA 20 kA 3,938 34,233 44,583 11,297 35 19
L50S225 225 500 450 200 kA 20 kA 6,034 43,500 56,000 14,750 31 17
L50S250 250 500 450 200 kA 20 kA 7,510 54,000 69,000 19,600 36 19
L50S275 275 500 450 200 kA 20 kA 9,000 65,500 82,000 25,500 41 22
L50S300 300 500 450 200 kA 20 kA 10,808 78,500 97,500 32,200 42 23
L50S350 350 500 450 200 kA 20 kA 16,500 107,000 132,000 50,100 50 28
L50S400 400 500 450 200 kA 20 kA 22,941 142,333 169,667 72,270 58 30
L50S450 450 500 450 200 kA 20 kA 29,300 178,500 208,000 95,000 58 32
L50S500 500 500 450 200 kA 20 kA 37,000 220,000 250,000 118,000 64 35
L50S550 550 500 450 200 kA 20 kA 45,851 311,667 347,333 176,766 75 41
L50S600 600 500 450 200 kA 20 kA 45,851 311,667 347,333 176,766 98 50
POWR-SPEED® Fuses
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© 2019 Littelfuse, Inc.
30 of 52
L50S SERIES HIGH-SPEED ROUND BODY
% litleltuse‘
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© 2019 Littelfuse, Inc.
Rev: 073119
2 of 6
POWR-GARD® Fuse
L50S SERIES HIGH-SPEED ROUND BODY
Electrical Specifi cations
CATALOG
NUMBER
AMPERAGE
RATING
VOLTAGE
RATING
INTERRUPT
RATING MELTING
(PRE-ARC)
I
2
T (A
2
s)
TOTAL
CLEARING
I
2
T (A
2
s)
TOTAL
CLEARING
I
2
T (A
2
s)
TOTAL
CLEARING
I
2
T (A
2
s)
WATTS LOSS
AT 100 % RATED
CURRENT
WATTS LOSS
AT 80 % RATED
CURRENT
AC DC AC DC 100 kA
@ 500 V AC
200 kA
@ 500 V AC
20 kA
@ 450 V DC (W) (W)
L50S010 10 500 450 200 kA 20 kA 21 112 128 85 2 1
L50S012 12 500 450 200 kA 20 kA 26 149 170 97 2 1
L50S015 15 500 450 200 kA 20 kA 34 222 250 116 2 2
L50S020 20 500 450 200 kA 20 kA 48 363 400 143 5 3
L50S025 25 500 450 200 kA 20 kA 62 528 600 170 7 4
L50S030 30 500 450 200 kA 20 kA 77 707 820 193 10 5
L50S035 35 500 450 200 kA 20 kA 130 1,120 1,210 400 6 3
L50S040 40 500 450 200 kA 20 kA 161 1,420 1,550 525 7 4
L50S050 50 500 450 200 kA 20 kA 222 2,150 2,360 867 11 6
L50S060 60 500 450 200 kA 20 kA 259 3,016 3,300 1,287 13 7
L50S070 70 500 450 200 kA 20 kA 420 4,100 4,930 1,670 17 10
L50S080 80 500 450 200 kA 20 kA 554 5,300 6,950 2,240 19 10
L50S090 90 500 450 200 kA 20 kA 677 6,750 9,500 2,900 24 13
L50S100 100 500 450 200 kA 20 kA 807 8,273 12,600 3,626 30 16
L50S125 125 500 450 200 kA 20 kA 1,290 13,100 19,000 5,150 22 12
L50S150 150 500 450 200 kA 20 kA 2,504 19,100 26,500 6,700 27 15
L50S175 175 500 450 200 kA 20 kA 3,224 26,300 35,000 8,700 33 17
L50S200 200 500 450 200 kA 20 kA 3,938 34,233 44,583 11,297 35 19
L50S225 225 500 450 200 kA 20 kA 6,034 43,500 56,000 14,750 31 17
L50S250 250 500 450 200 kA 20 kA 7,510 54,000 69,000 19,600 36 19
L50S275 275 500 450 200 kA 20 kA 9,000 65,500 82,000 25,500 41 22
L50S300 300 500 450 200 kA 20 kA 10,808 78,500 97,500 32,200 42 23
L50S350 350 500 450 200 kA 20 kA 16,500 107,000 132,000 50,100 50 28
L50S400 400 500 450 200 kA 20 kA 22,941 142,333 169,667 72,270 58 30
L50S450 450 500 450 200 kA 20 kA 29,300 178,500 208,000 95,000 58 32
L50S500 500 500 450 200 kA 20 kA 37,000 220,000 250,000 118,000 64 35
L50S550 550 500 450 200 kA 20 kA 45,851 311,667 347,333 176,766 75 41
L50S600 600 500 450 200 kA 20 kA 45,851 311,667 347,333 176,766 98 50
Littelfuse.com/L50S
© 2019 Littelfuse, Inc.
Rev: 073119
3 of 6
POWR-GARD® Fuse
L50S SERIES HIGH-SPEED ROUND BODY
SERIES AMPERAGE
RATING
AMP
CODE
CATALOG
NUMBER
ORDERING
NUMBER
PACK
QUANTITY UPC
L50S 10 010 L50S010 L50S010.T 10 pcs/box 07945885010
L50S 12 012 L50S012 L50S012.T 10 pcs/box 07945885012
L50S 15 015 L50S015 L50S015.T 10 pcs/box 07945885015
L50S 20 020 L50S020 L50S020.T 10 pcs/box 07945885020
L50S 25 025 L50S025 L50S025.T 10 pcs/box 07945885025
L50S 30 030 L50S030 L50S030.T 10 pcs/box 07945885030
L50S 35 035 L50S035 L50S035.T 10 pcs/box 07945885035
L50S 40 040 L50S040 L50S040.T 10 pcs/box 07945885040
L50S 50 050 L50S050 L50S050.T 10 pcs/box 07945885050
L50S 60 060 L50S060 L50S060.T 10 pcs/box 07945885060
L50S 70 070 L50S070 L50S070.T 10 pcs/box 07945885070
L50S 80 080 L50S080 L50S080.T 10 pcs/box 07945885080
L50S 90 090 L50S090 L50S090.T 10 pcs/box 07945885090
L50S 100 100 L50S100 L50S100.T 10 pcs/box 07945885100
L50S 125 125 L50S125 L50S125.V 5 pcs/box 07945885125
L50S 150 150 L50S150 L50S150.V 5 pcs/box 07945885150
L50S 175 175 L50S175 L50S175.V 5 pcs/box 07945885175
L50S 200 200 L50S200 L50S200.V 5 pcs/box 07945885200
L50S 225 225 L50S225 L50S225.V 5 pcs/box 07945885225
L50S 250 250 L50S250 L50S250.V 5 pcs/box 07945885250
L50S 275 275 L50S275 L50S275.V 5 pcs/box 07945885275
L50S 300 300 L50S300 L50S300.V 5 pcs/box 07945885300
L50S 350 350 L50S350 L50S350.V 5 pcs/box 07945885350
L50S 400 400 L50S400 L50S400.V 5 pcs/box 07945885400
L50S 450 450 L50S450 L50S450.X 1 pc/box 07945885450
L50S 500 500 L50S500 L50S500.X 1 pc/box 07945885500
L50S 550 550 L50S550 L50S550.X 1 pc/box 07945885550
L50S 600 600 L50S600 L50S600.X 1 pc/box 07945885600
L50S 700 700 L50S700 L50S700.X 1 pc/box 07945885700
L50S 800 800 L50S800 L50S800.X 1 pc/box 07945885800
Ordering Information
Dimensions
AMPERE
RATING FIGURE NO. DIMENSIONS INCHES (mm)
A B C D E F G H
10–30 12 (50.8) —1⁄2 (12.7) 9⁄16 (14.3) — — — —
31–60 2 15⁄8 (41.3) 21⁄4 (5 7.2) 21⁄2 (63.5) 33⁄16 (81.0) 13⁄16 (20.6) 23⁄32 (18.3) 11 ⁄32 (8.7) 1⁄8 (3.2)
61–100 3 21⁄8 (54.0) 211 ⁄16 (68.3) 3 (76.2) 35⁄8 (92.1) 1 (25.4) .6 70 (17.0) 11 ⁄32 (8.7) 1⁄8 (3.2)
101–200 3 21⁄8 (54.0) 213 ⁄16 (71.4) 215 ⁄16 (74.6) 35⁄8 (92.1) 17⁄32 (31.0) .895 (22.7) 5⁄16 (7.9) 3⁄16 (4.75)
201–400 3 23⁄32 (53.2) 225⁄32 (70.6) 313⁄32 (86.5) 411 ⁄32 (110.3) 11⁄2 (38.1) 1 (25.4) 13 ⁄32 (10.3) 1⁄4 (6.4)
401–600 3 27⁄32 (56.4) 229⁄32 (73.8) 317⁄32 (89.7) 415 ⁄32 (113.5) 2 (50.8) 11⁄2 (38.1) 13⁄32 (10.3) 1⁄4 (6.4)
601–800 3 27⁄32 (56.4) 49⁄32 (108.7) 45⁄8 (117.5) 615 ⁄32 (164.3) 21⁄2 (63.5) 2 (50.8) 17⁄32 (13.5) 3⁄8 (9.5)
A
B
C
D
F
G
E
H
Fig. 3
A
C
D
Fig. 1
E
H
F
GA
B
C
D
Fig, 2
POWR-SPEED® Fuses
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© 2019 Littelfuse, Inc.
31 of 52
L50S SERIES HIGH-SPEED ROUND BODY
% litleltuse'
bperluseADphad \ Answeumhvemd
Littelfuse.com/L15S
© 2019 Littelfuse, Inc.
Rev: 073119
1 of 10
POWR-GARD® Fuse
L15S SERIES TRADITIONAL HIGH-SPEED
150 V ac • Very Fast-Acting • 1–1000 A
Specifi cations
Voltage Ratings Ac: 150 V
Dc: 100 V–150 V
Ampere Range 1–1000 A
Interrupting Rating Ac: 100 kA
Dc: 20 kA Self Certifi ed
Approvals UL Recognized (File: E71611)
CSA Recognized (File: LR29862)
Time Constant 10 ms
Material Body: melamine
Cap: copper alloy (silver plated)
Environmental RoHS
Country of Origin Mexico
Operating Temperature -55 °C to +125 °C
Storage Temperature Up to 35 °C with relative humidity <65 %
Part Numbering System
L15S xxx .T
Package Quantity
Series
Amperage
(3 digit minimum amperage
in decimal form)
T = 10 (1 A–450 A)
V = 5 (500 A–1000 A)
SERIES AMPERAGE CATALOG
NUMBER
ORDERING
NUMBER
L15S 005 L15S005 L15S005.T
L15S 500 L15S500 L15S500.V
L15S 1000 L15S1000 L15S1000V
Recommended Fuse Holders
1LFS101/1LFS102
LSCR001/LSCR002
Web Resources
For additional information, visit: Littelfuse.com/high-speed
Note: high-speed fuses are designed for fi xed installations. They are not
intended for use in moving vehicle applications.
Description
The L15S series is a traditional North American bolted style
high-speed fuse for protection of power semiconductor
devices that are rated up to 150 V ac and up to 150 V dc
Littelfuse POWR-SPEED ® products offer optimized circuit
protection at the extremely fast speed required to protect
power semiconductor devices such as silicon controlled
rectifiers (SCR’s), diodes, thyristors, triacs, transistors, and
similar solid-state devices. These devices are used in power
equipment including variable speed drives, power rectifiers,
UPS systems, dc power supplies, and in a wide range of
electronic equipment. May be used wherever extremely fast-
acting, current-limiting fuses with no time delay are required.
Features/Benefi ts
Compliance with US and Canadian requirements
Traditional North American bolted style dimensions
Class aR performance
Direct bus-bar mount or stud mount design
RoHS Compliant
Applications
Power converters (inverters, rectifi ers, ups)
Power supplies
Industrial heaters
Variable speed drives
Battery chargers
Soft starters
POWR-SPEED® Fuses
Littelfuse.com/powr-speed
© 2019 Littelfuse, Inc.
32 of 52
L15S SERIES HIGH-SPEED ROUND BODY
tleltuse‘
u \ Am,
Littelfuse.com/L15S
© 2019 Littelfuse, Inc.
Rev: 073119
2 of 10
POWR-GARD® Fuse
L15S SERIES TRADITIONAL HIGH-SPEED
Electrical Specifi cations
CATALOG NUMBER AMPERAGE RATING
VOLTAGE RATING INTERRUPT RATING
AC DC AC DC
L15S001 1150 150 100 kA 20 kA
L15S002 2150 150 100 kA 20 kA
L15S003 3150 150 100 kA 20 kA
L15S004 4150 150 100 kA 20 kA
L15S005 5150 150 100 kA 20 kA
L15S006 6150 150 100 kA 20 kA
L15S007 7150 150 100 kA 20 kA
L15S008 8150 150 100 kA 20 kA
L15S009 9150 150 100 kA 20 kA
L15S010 10 150 150 100 kA 20 kA
L15S012 12 150 150 100 kA 20 kA
L15S015 15 150 150 100 kA 20 kA
L15S020 20 150 150 100 kA 20 kA
L15S025 25 150 150 100 kA 20 kA
L15S035 35 150 150 100 kA 20 kA
L15S040 40 150 150 100 kA 20 kA
L15S045 45 150 150 100 kA 20 kA
L15S050 50 150 150 100 kA 20 kA
L15S060 60 150 150 100 kA 20 kA
L15S070 70 150 100 100 kA 20 kA
L15S080 80 150 100 100 kA 20 kA
L15S090 90 150 100 100 kA 20 kA
L15S100 100 150 100 100 kA 20 kA
L15S125 125 150 100 100 kA 20 kA
L15S150 150 150 100 100 kA 20 kA
L15S200 200 150 100 100 kA 20 kA
L15S250 250 150 100 100 kA 20 kA
L15S300 300 150 100 100 kA 20 kA
L15S350 350 150 100 100 kA 20 kA
L15S400 400 150 100 100 kA 20 kA
L15S450 450 150 100 100 kA 20 kA
L15S500 500 150 100 100 kA 20 kA
L15S600 600 150 100 100 kA 20 kA
L15S800 800 150 100 100 kA 20 kA
L15S1000 1000 150 100 100 kA 20 kA
POWR-SPEED® Fuses
Littelfuse.com/powr-speed
© 2019 Littelfuse, Inc.
33 of 52
L15S SERIES HIGH-SPEED ROUND BODY
tleltuse‘
u \ Am,
Littelfuse.com/L15S
© 2019 Littelfuse, Inc.
Rev: 073119
3 of 10
POWR-GARD® Fuse
L15S SERIES TRADITIONAL HIGH-SPEED
Ordering Information
SERIES AMPERAGE AMPERE CODE CATALOG
NUMBER
ORDERING
NUMBER PACK QUANTITY UPC
L15S 1001. L15S001 L15S001.T 10 Pcs/Box 07945800218
L15S 2002. L15S002 L15S002.T 10 Pcs/Box 07945800219
L15S 3003. L15S003 L15S003.T 10 Pcs/Box 07945800220
L15S 4004. L15S004 L15S004.T 10 Pcs/Box 07945800221
L15S 5005. L15S005 L15S005.T 10 Pcs/Box 07945800222
L15S 6006. L15S006 L15S006.T 10 Pcs/Box 07945800223
L15S 70 07. L15S007 L15 S00 7.T 10 Pcs/Box 07945800224
L15S 8008. L15S008 L15S008.T 10 Pcs/Box 07945800225
L15S 9009. L15S009 L15S009.T 10 Pcs/Box 07945800226
L15S 10 010. L15S010 L15S010.T 10 Pcs/Box 07945800227
L15S 12 012. L15S012 L15S012.T 10 Pcs/Box 07945800228
L15S 15 015. L15S015 L15S015.T 10 Pcs/Box 07945800229
L15S 20 020. L15S020 L15S020.T 10 Pcs/Box 07945800230
L15S 25 025. L15S025 L15S025.T 10 Pcs/Box 07945800231
L15S 30 030. L15S030 L15S030.T 10 Pcs/Box 07945800232
L15S 35 035. L15S035 L15S035.T 10 Pcs/Box 07945800233
L15S 40 040. L15S040 L15S040.T 10 Pcs/Box 07945800234
L15S 45 045. L15S045 L15S045.T 10 Pcs/Box 07945800235
L15S 50 050. L15S050 L15S050.T 10 Pcs/Box 07945800236
L15S 60 060. L15S060 L15S060.T 10 Pcs/Box 07945800237
L15S 70 070. L15S070 L15S070.T 10 Pcs/Box 07945800238
L15S 80 080. L15S080 L15S080.T 10 Pcs/Box 07945800239
L15S 90 090. L15S090 L15S090.T 10 Pcs/Box 07945800240
L15S 100 100. L15S100 L15S100.T 10 Pcs/Box 07945800241
L15S 125 125. L15S125 L15S125.T 10 Pcs/Box 07945800242
L15S 150 150. L15S150 L15S150.T 10 Pcs/Box 07945800243
L15S 200 200. L15S200 L15S200.T 10 Pcs/Box 07945800244
L15S 250 250. L15S250 L15S250.T 10 Pcs/Box 07945800245
L15S 300 300. L15S300 L15S300.T 10 Pcs/Box 07945800246
L15S 350 350. L15S350 L15S350.T 10 Pcs/Box 07945800247
L15S 400 400. L15S400 L15S400.T 10 Pcs/Box 07945800248
L15S 450 450. L15S450 L15S450.T 10 Pcs/Box 07945800249
L15S 500 500. L15S500 L15S500.V 5 Pcs/Box 07945800250
L15S 600 600. L15S600 L15S600.V 5 Pcs/Box 07945800251
L15S 800 800. L15S800 L15S800.V 5 Pcs/Box 07945800252
L15S 1000 1000 L15S1000 L15S1000V 5 Pcs/Box 07945800253
POWR-SPEED® Fuses
Littelfuse.com/powr-speed
© 2019 Littelfuse, Inc.
34 of 52
L15S SERIES HIGH-SPEED ROUND BODY
x H
34»
«A +|
H04.
<70!» :="" .l="" %="" litleltuse‘="">Littelfuse.com/L15S
© 2019 Littelfuse, Inc.
Rev: 073119
4 of 10
POWR-GARD® Fuse
L15S SERIES TRADITIONAL HIGH-SPEED
AMPERE
RATING
FIG.
NO.
DIMENSIONS INCHES (MM)
A B C D E F G H
1 – 30 11½ (38.1) —3⁄8 (9.5) 13⁄32 (10.3) — — — —
31 – 60 12 (50.8) —5⁄8 (15.9) 13⁄16 (20.6) — — — —
61 – 450 215⁄32 (29.4) 17⁄8 (47.6) 23⁄16 (55.6) 221⁄32 (67.5) 1 (25.4) 43⁄64 (17.1) 5⁄16 (7.9) 3⁄16 (4.8)
451 – 1000 21¼ (31.8) 115⁄16 (49.2) 29⁄16 (65.1) 3½ (88.9) 1½ (38.1) 1 (25.4) 13⁄32 (10.3) ¼ (6.4)
Dimensions
A
B
C
D
F
G
E
H
Fig. 2
A
C
D
Fig. 1
Figure 1
AMPERE
RATING
FIG.
NO.
DIMENSIONS INCHES (MM)
A B C D E F G H
1 – 30 11½ (38.1) —3⁄8 (9.5) 13⁄32 (10.3) — — — —
31 – 60 12 (50.8) —5⁄8 (15.9) 13⁄16 (20.6) — — — —
61 – 450 215⁄32 (29.4) 17⁄8 (47.6) 23⁄16 (55.6) 221⁄32 (67.5) 1 (25.4) 43⁄64 (17.1) 5⁄16 (7.9) 3⁄16 (4.8)
451 – 1000 21¼ (31.8) 115⁄16 (49.2) 29⁄16 (65.1) 3½ (88.9) 1½ (38.1) 1 (25.4) 13⁄32 (10.3) ¼ (6.4)
Dimensions
A
B
C
D
F
G
E
H
Fig. 2
A
C
D
Fig. 1
Figure 2
POWR-SPEED® Fuses
Littelfuse.com/powr-speed
© 2019 Littelfuse, Inc.
35 of 52
L15S SERIES HIGH-SPEED ROUND BODY
“(€65
% litleltuse'
bperluseADphad \ Answeumhvemd
250 V ac • Very Fast-Acting • 1–800 A
Specifi cations
Voltage Ratings Ac: 250 V
Dc: 200 V–250 V
Ampere Range 1–800 A
Interrupting Rating Ac: 200 kA
Dc: 20 kA Self Certifi ed
Approvals UL Recognized (File: E71611)
CSA Recognized (File: LR29862)
Time Constant 10 ms
Material Body: melamine
Caps: copper alloy (silver plated)
Environmental RoHS
Country of Origin Mexico
Operating Temperature -55 °C to +125 °C
Storage Temperature Up to 35 °C with Relative Humidity <65 %
Part Numbering System
L25S xxx .T
Package Quantity
Series
Amperage
(3 digit minimum amperage
in decimal form)
T = (1 A–60 A)
V = (70 A–800 A)
SERIES AMPERAGE CATALOG
NUMBER
ORDERING
NUMBER
L25S 1L25S001 L25S001.T
L25S 100 L25S100 L25S100.V
Recommended Fuse Holders
1LFS101/1LFS102
LSCR001/LSCR002
Web Resources
For additional information, visit: Littelfuse.com/high-speed
Note: high-speed fuses are designed for fi xed installations. They are not
intended for use in moving vehicle applications.
Description
The L25S Series is a traditional North American bolted style
high-speed fuse for protection of power semiconductor
devices that are rated up to 250 V ac and 200 V dc.
Littelfuse POWR-SPEED® products offer optimized circuit
protection at the extremely fast speed required to protect
power semiconductor devices such as silicon controlled
rectifiers (SCR’s), diodes, thyristors, triacs, transistors, and
similar solid-state devices. These devices are used in power
equipment including variable speed drives, power rectifiers,
UPS systems, dc power supplies, and in a wide range of
electronic equipment. May be used wherever extremely
fast-acting, current-limiting fuses are used with no time
delay required.
Features/Benefi ts
Compliance with US and Canadian requirements
Traditional North American bolted style dimensions
Class aR performance
Direct bus-bar mount or stud mount design
RoHS Compliant applications
Applications
Power converters (inverters, rectifi ers, UPS)
Power supplies
Industrial heaters
Variable speed drives
Battery chargers
Soft starters
Littelfuse.com/L25S
© 2019 Littelfuse, Inc.
Rev: 073119
1 of 11
POWR-GARD® Fuse
L25S SERIES TRADITIONAL HIGH-SPEED
POWR-SPEED® Fuses
Littelfuse.com/powr-speed
© 2019 Littelfuse, Inc.
36 of 52
L25S SERIES HIGH-SPEED ROUND BODY
tleltuse‘
u \ Am,
Electrical Specifi cations
CATALOG NUMBER AMPERAGE RATING VOLTAGE RATING INTERRUPT RATING
AC DC AC DC
L25S001 1250 250 200 kA 20 kA
L25S002 2250 250 200 kA 20 kA
L25S003 3250 250 200 kA 20 kA
L25S004 4250 250 200 kA 20 kA
L25S005 5250 250 200 kA 20 kA
L25S006 6250 250 200 kA 20 kA
L25S008 8250 250 200 kA 20 kA
L25S010 10 250 250 200 kA 20 kA
L25S012 12 250 250 200 kA 20 kA
L25S015 15 250 250 200 kA 20 kA
L25S020 20 250 250 200 kA 20 kA
L25S025 25 250 250 200 kA 20 kA
L25S030 30 250 250 200 kA 20 kA
L25S035 35 250 250 200 kA 20 kA
L25S040 40 250 250 200 kA 20 kA
L25S045 45 250 250 200 kA 20 kA
L25S050 50 250 250 200 kA 20 kA
L25S060 60 250 250 200 kA 20 kA
L25S070 70 250 250 200 kA 20 kA
L25S080 80 250 250 200 kA 20 kA
L25S090 90 250 250 200 kA 20 kA
L25S100 100 250 250 200 kA 20 kA
L25S125 125 250 250 200 kA 20 kA
L25S150 150 250 250 200 kA 20 kA
L25S175 175 250 250 200 kA 20 kA
L25S200 200 250 250 200 kA 20 kA
L25S225 225 250 200 200 kA 20 kA
L25S250 250 250 200 200 kA 20 kA
L25S275 275 250 200 200 kA 20 kA
L25S300 300 250 200 200 kA 20 kA
L25S350 350 250 200 200 kA 20 kA
L25S400 400 250 200 200 kA 20 kA
L25S450 450 250 200 200 kA 20 kA
L25S500 500 250 200 200 kA 20 kA
L25S600 600 250 200 200 kA 20 kA
L25S700 700 250 200 200 kA 20 kA
L25S800 800 250 200 200 kA 20 kA
Littelfuse.com/L25S
© 2019 Littelfuse, Inc.
Rev: 073119
2 of 11
POWR-GARD® Fuse
L25S SERIES TRADITIONAL HIGH-SPEED
POWR-SPEED® Fuses
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© 2019 Littelfuse, Inc.
37 of 52
L25S SERIES HIGH-SPEED ROUND BODY
SERIES AMPERAGE AMPERE CODE CATALOG
NUMBER
ORDERING
NUMBER PACK QUANTITY UPC
L25S 1001. L25S001 L25S001.T 10 Pcs/Box 07945884001
L25S 2002. L25S002 L25S002.T 10 Pcs/Box 07945884002
L25S 3003. L25S003 L25S003.T 10 Pcs/Box 07945884003
L25S 4004. L25S004 L25S004.T 10 Pcs/Box 07945884004
L25S 5005. L25S005 L25S005.T 10 Pcs/Box 07945884005
L25S 6006. L25S006 L25S006.T 10 Pcs/Box 07945884006
L25S 8008. L25S008 L25S008.T 10 Pcs/Box 07945884008
L25S 10 010. L25S010 L 25S010.T 10 Pcs/Box 07945884010
L25S 12 012. L25S012 L25S012.T 10 Pcs/Box 07945884012
L25S 15 015. L25S015 L25S015.T 10 Pcs/Box 07945884015
L25S 20 020. L25S020 L25S020.T 10 Pcs/Box 07945884020
L25S 25 025. L25S025 L25S025.T 10 Pcs/Box 07945884025
L25S 30 030. L25S030 L25S030.T 10 Pcs/Box 07945884030
L25S 35 035. L25S035 L 25S035.T 10 Pcs/Box 07945884035
L25S 40 040. L25S040 L25S040.T 10 Pcs/Box 07945884040
L25S 45 045. L25S045 L25S045.T 10 Pcs/Box 07945884045
L25S 50 050. L25S050 L25S050.T 10 Pcs/Box 07945884050
L25S 60 060. L25S060 L25S060.T 10 Pcs/Box 07945884060
L25S 70 070. L25S070 L25S070.V 5 Pcs/Box 07945884070
L25S 80 080. L25S080 L25S080.V 5 Pcs/Box 07945884080
L25S 90 090. L25S090 L25S090.V 5 Pcs/Box 07945884090
L25S 100 100. L25S100 L25S100.V 5 Pcs/Box 07945884100
L25S 125 125. L25S125 L25S125.V 5 Pcs/Box 07945884125
L25S 150 150. L25S150 L25S150.V 5 Pcs/Box 07945884150
L25S 175 175. L25S175 L25S175.V 5 Pcs/Box 07945884175
L25S 200 200. L25S200 L25S200.V 5 Pcs/Box 07945884200
L25S 225 225. L25S225 L25S225.V 5 Pcs/Box 07945884225
L25S 250 250. L25S250 L25S250.V 5 Pcs/Box 07945884250
L25S 275 275. L25S275 L25S275.V 5 Pcs/Box 07945884275
L25S 300 300. L25S300 L25S300.V 5 Pcs/Box 07945884300
L25S 350 350. L25S350 L25S350.V 5 Pcs/Box 07945884350
L25S 400 400. L25S400 L25S400.V 5 Pcs/Box 07945884400
L25S 450 450. L25S450 L25S450.V 5 Pcs/Box 07945884450
L25S 500 500. L25S500 L25S500.V 5 Pcs/Box 07945884500
L25S 600 600. L25S600 L25S600.V 5 Pcs/Box 07945884600
L25S 700 700. L25S700 L25S700.V 5 Pcs/Box 07945884700
L25S 800 800. L25S800 L25S800.V 5 Pcs/Box 07945884800
Ordering Information
Littelfuse.com/L25S
© 2019 Littelfuse, Inc.
Rev: 073119
3 of 11
POWR-GARD® Fuse
L25S SERIES TRADITIONAL HIGH-SPEED
POWR-SPEED® Fuses
Littelfuse.com/powr-speed
© 2019 Littelfuse, Inc.
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L25S SERIES HIGH-SPEED ROUND BODY
% litleltuse‘
A
B
C
D
F
G
E
H
Fig. 3
AMPERE
RATING
FIG.
NO.
DIMENSIONS INCHES (MM)
A B C D E F G H
1 – 30 12 (50.8) —½ (12.7) 9⁄16 (14.3) — — — —
31 – 60 215⁄8 (41.3) 2¼ (57.2) 2½ (63.5) 33⁄16 (81.0) 13⁄16 (20.6) 23⁄32 (18.3) 11⁄32 (8.7) 1⁄8 (3.2)
61 – 200 315⁄8 (41.3) 25⁄16 (58.7) 27⁄16 (61.9) 31⁄8 (79.4) 17⁄32 (31.0) 1 (25.4) 5⁄16 (7.9) 3⁄16 (4.8)
201 – 700 3119⁄32 (40.5) 29⁄32 (57.9) 229⁄32 (73.8) 327⁄32 (97.6) 1½ (38.1) 1 (25.4) 13⁄32 (10.3) ¼ (6.4)
701 – 800 3119⁄32 (40.5) 29⁄32 (57.9) 229⁄32 (73.8) 327⁄32 (97.6) 2 (50.8) 1½ (38.1) 13⁄32 (10.3) ¼ (6.4)
E
H
F
GA
B
C
D
Fig, 2
A
C
D
Fig. 1
Dimensions
Figure 1 Figure 2 Figure 3
Littelfuse.com/L25S
© 2019 Littelfuse, Inc.
Rev: 073119
4 of 11
POWR-GARD® Fuse
L25S SERIES TRADITIONAL HIGH-SPEED
POWR-SPEED® Fuses
Littelfuse.com/powr-speed
© 2019 Littelfuse, Inc.
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L25S SERIES HIGH-SPEED ROUND BODY
% litleltuse'
bperluseADphad \ Answeumhvemd
POWR-GARD® Fuse
L60S/KLC SERIES TRADITIONAL HIGH-SPEED
600 V ac • Very Fast-Acting • 1–800 A
Description
The L60S and KLC series is a traditional North American
style high-speed fuse for protection of power semiconductor
devices that are rated up to 600 V ac. These fuse series
are typically used for replacement purposes only. For new
designs L70QS series is recommended.
Features/Benefi ts
Compliance with US and Canadian requirements
Traditional North American cylindrical and bolted
style dimensions
Class aR performance
Applications
Small power converters
Power supplies
Control circuits
Specifi cations
Voltage Rating 600 V ac
Ampere Range 1–800 A
Interrupting Rating 200 kA rms
Approvals UL Recognized (File: E71611)
CSA Recognized (File: LR29862)
Country of Origin Mexico
Operating Temperature -55 °C to +125 °C
Storage Temperature Up to 35 °C with relative humidity <65 %
Part Numbering System
xxxx xxx X
Package Quantity
Series
Ampere Code
(3 digit minimum amperage
in decimal form)
L60S
KLC X = 1 (110–800 A)
V = 5 (70–100 A)
T = 10 (1–60 A)
Recommended Fuse Holders
1LFS101/1LFS102
LSCR001/LSCR002
Web Resources
For additional information, visit: Littelfuse.com/high-speed
Note: high-speed fuses are designed for fi xed installations. They are not
intended for use in moving vehicle applications.
L60S Series
KLC Series
Littelfuse.com/L60S-KLC
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L60S/KLC SERIES HIGH-SPEED ROUND BODY
tleltuse‘
u \ Am,
POWR-GARD® Fuse
L60S/KLC SERIES TRADITIONAL HIGH-SPEED
L60S SERIES
SERIES AMPERAGE AMPERE CODE CATALOG NUMBER ORDERING NUMBER PACK QUANTITY UPC
L60S 1001. L60S001 L60S001.T 10 Pcs/Box 07945810100
L60S 2002. L60S002 L60S002.T 10 Pcs/Box 07945810101
L60S 3003. L60S003 L60S003.T 10 Pcs/Box 07945810102
L60S 4004. L60S004 L60S004.T 10 Pcs/Box 07945810103
L60S 5005. L60S005 L60S005.T 10 Pcs/Box 07945810104
L60S 6006. L60S006 L60S006.T 10 Pcs/Box 07945810105
L60S 8008. L60S008 L60S008.T 10 Pcs/Box 07945810107
L60S 10 010. L60S010 L60S010.T 10 Pcs/Box 07945810108
L60S 12 012. L60S012 L60S012.T 10 Pcs/Box 07945810109
L60S 15 015. L60S015 L60S015.T 10 Pcs/Box 07945810110
L60S 17.5 17.5 L60S17.5 L 60 S17.5T 10 Pcs/Box 07945810135
L60S 20 020. L60S020 L60S020.T 10 Pcs/Box 079 45810111
L60S 25 025. L60S025 L60S025.T 10 Pcs/Box 07945810112
L60S 30 030. L60S030 L60S030.T 10 Pcs/Box 07945810113
L60S 35 035. L60S035 L60S035.T 10 Pcs/Box 07945810114
L60S 40 040. L60S040 L60S040.T 10 Pcs/Box 07945810115
L60S 45 045. L60S045 L60S045.T 10 Pcs/Box 07945810116
L60S 50 050. L60S050 L60S050.T 10 Pcs/Box 07945810117
L60S 60 060. L60S060 L60S060.T 10 Pcs/Box 07945810118
L60S 70 070. L60S070 L60S070.V 5 Pcs/Box 07945810119
L60S 80 080. L60S080 L60S080.V 5 Pcs/Box 07945810120
L60S 90 090. L60S090 L60S090.V 5 Pcs/Box 07945810121
L60S 100 100. L60S100 L60S100.V 5 Pcs/Box 07945810122
L60S 125 125. L60S125 L60S125.X 1 Pcs/Box 07945810123
L60S 150 150. L60S150 L60S150.X 1 Pcs/Box 07945810124
L60S 175 175. L60S175 L60S175.X 1 Pcs/Box 07945810125
L60S 200 200. L60S200 L60S200.X 1 Pcs/Box 07945810126
L60S 225 225. L60S225 L60S225.X 1 Pcs/Box 07945810137
L60S 250 250. L60S250 L60S250.X 1 Pcs/Box 07945810127
L60S 300 300. L60S300 L60S300.X 1 Pcs/Box 07945810128
L60S 350 350. L60S350 L60S350.X 1 Pcs/Box 07945810129
L60S 400 400. L60S400 L60S400.X 1 Pcs/Box 07945810130
L60S 450 450. L60S450 L60S450.X 1 Pcs/Box 07945810131
L60S 500 500. L60S500 L60S500.X 1 Pcs/Box 07945810132
L60S 600 600. L60S600 L60S600.X 1 Pcs/Box 07945810133
L60S 700 700. L60S700 L60S700.X 1 Pcs/Box 07945810136
L60S 800 800. L60S800 L60S800.X 1 Pcs/Box 07945810134
Ordering Information
Littelfuse.com/L60S-KLC
© 2019 Littelfuse, Inc.
Rev: 061919
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L60S/KLC SERIES HIGH-SPEED ROUND BODY
tleltuse‘
u \ Am,
POWR-GARD® Fuse
L60S/KLC SERIES TRADITIONAL HIGH-SPEED
KLC* SERIES
SERIES AMPERAGE AMPERE CODE CATALOG NUMBER ORDERING NUMBER PACK QUANTITY UPC
KLC 1001. KLC001 0KLC001.T 10 pcs/box 07945823031
KLC 2002. KLC002 0KLC002.T 10 pcs/box 07945823041
KLC 3003. KLC003 0KLC003.T 10 pcs/box 07945823047
KLC 4004. KLC004 0KLC004.T 10 pcs/box 07945823053
KLC 5005. KLC005 0KLC005.T 10 pcs/box 07945823055
KLC 6006. KLC006 0KLC006.T 10 pcs/box 07945823058
KLC 70 07. KLC007 0K LC00 7.T 10 pcs/box 07945823061
KLC 8008. KLC008 0KLC008.T 10 pcs/box 07945823063
KLC 10 010. KLC010 0KLC010.T 10 pcs/box 07945823065
KLC 12 012. KLC012 0KLC012.T 10 pcs/box 07945823066
KLC 15 015. KLC015 0KLC015.T 10 pcs/box 07945823068
KLC 17.5 17.5 KLC17.5 0KLC17.5T 10 pcs/box 07945823069
KLC 20 020. KLC020 0KLC020.T 10 pcs/box 07945823071
KLC 25 025. KLC025 0KLC025.T 10 pcs/box 07945823072
KLC 30 030. KLC030 0KLC030.T 10 pcs/box 07945823073
KLC 35 035. KLC035 0KLC035.T 10 pcs/box 07945823074
KLC 40 040. KLC040 0KLC040.T 10 pcs/box 07945823075
KLC 45 045. KLC045 0KLC045.T 10 pcs/box 07945823076
KLC 50 050. KLC050 0KLC050.T 10 pcs/box 07945823077
KLC 60 060. KLC060 0KLC060.T 10 pcs/box 07945823078
KLC 70 070. KLC070 0KLC070.V 5 pcs/box 07945823079
KLC 80 080. KLC080 0KLC080.V 5 pcs/box 07945823080
KLC 90 090. KLC090 0KLC090.V 5 pcs/box 07945823081
KLC 100 100. KLC100 0KLC100.V 5 pcs/box 07945823082
KLC 110 110. KLC110 0KLC110.X 1 pcs/box 07945823083
KLC 125 125. KLC125 0KLC125.X 1 pcs/box 07945823084
KLC 150 150. KLC150 0KLC150.X 1 pcs/box 07945823086
KLC 175 175. KLC175 0KLC175.X 1 pcs/box 07945823087
KLC 200 200. KLC200 0KLC200.X 1 pcs/box 07945823088
KLC 225 225. KLC225 0KLC225.X 1 pcs/box 07945823089
KLC 250 250. KLC250 0KLC250.X 1 pcs/box 07945823090
KLC 300 300. KLC300 0KLC300.X 1 pcs/box 07945823091
KLC 350 350. KLC350 0KLC350.X 1 pcs/box 07945823092
KLC 400 400. KLC400 0KLC400.X 1 pcs/box 07945823093
KLC 450 450. KLC450 0KLC450.X 1 pcs/box 07945823095
KLC 500 500. KLC500 0KLC500.X 1 pcs/box 07945823096
KLC 600 600. KLC600 0KLC600.X 1 pcs/box 07945823098
KLC 700 700. KLC700 0KLC700.X 1 pcs/box 07945823101
KLC 800 800. KLC800 0KLC800.X 1 pcs/box 07945823103
*KLC series fuses are recommended for replacement use only.
Ordering Information
Littelfuse.com/L60S-KLC
© 2019 Littelfuse, Inc.
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L60S/KLC SERIES HIGH-SPEED ROUND BODY
% litleltuse‘
uulmJ \ ”3mean
POWR-GARD® Fuse
L60S/KLC SERIES TRADITIONAL HIGH-SPEED
A
B
C
D
F
G
E
H
Fig. 3
AMPERE
RATING
FIG.
NO.
DIMENSIONS INCHES (MM)
A B C D E F G H
L60S SERIES, 600 V AC
1 – 30 15 (127.0) —5⁄8 (15.9) 13⁄16 (20.6) — — — —
31 – 60 2225⁄32 (70.6) 37⁄16 (87.3) 311⁄16 (93.7) 43⁄8 (111.1) 13⁄16 (20.6) 23⁄32 (18.3) 11⁄32 (8.7) 1⁄8 (3.2)
61 – 100 2229⁄32 (73.8) 317⁄32 (89.7) 325⁄32 (96.0) 415⁄32 (113.5) 11⁄16 (27.0) 23⁄32 (18.3) 11⁄32 (8.7) 1⁄8 (3.2)
101 – 200 2229⁄32 (73.8) 39⁄16 (90.5) 3¾ (95.3) 413⁄32 (111.9) 15⁄16 (33.3) 1 (25.4) 5⁄16 (7.9) 3⁄16 (4.8)
201 – 400 2229⁄32 (73.8) 331⁄32 (100.8) 45⁄32 (105.6) 51⁄8 (130.2) 137⁄64 (40.1) 1 (25.4) 13⁄32 (10.3) ¼ (6.4)
401 – 600 227⁄8 (73.0) 331⁄32 (100.8) 49⁄64 (105.2) 51⁄8 (130.2) 21⁄16 (52.8) 1½ (38.1) 13⁄32 (10.3) ¼ (6.4)
601 – 800 231⁄32 (7 7.0) 55⁄32 (133.4) 511⁄32 (135.7) 7¼ (184.2) 2½ (63.5) 2 (50.8) 17⁄32 (13.5) 3⁄8 (9.5)
KLC SERIES, 600 V AC
1 – 30 217⁄8 (47.6) 2½ (63.5) —27⁄8 (73.0) 9⁄16 (14.3) 13⁄32 (10.3) ¼ (6.4) 3⁄64 (1.2)
31 – 60 22¾ (69.9) 33⁄8 (85.7) 35⁄8 (92.1) 45⁄16 (109.5) 13⁄16 (20.6) 23⁄32 (18.3) 11⁄32 (8.7) 1⁄8 (3.2)
61 – 100 327⁄8 (73.0) 321⁄32 (92.9) 41⁄16 (103.2) 5 (127.0) 1 (25.4) ¾ (19.1) 13⁄32 (10.3) 1⁄8 (3.2)
101 – 200 3227⁄32 (72.2) 317⁄32 (89.7) 43⁄8 (111.1) 53⁄32 (129.4) 1½ (38.1) 1 (25.4) 13⁄32 (10.3) ¼ (6.4)
201 – 400 3227⁄32 (72.2) 421⁄32 (118.3) 427⁄32 (123.0) 6¼ (158.8) 2 (50.8) 15⁄8 (41.3) 9⁄16 (14.3) ¼ (6.4)
401 – 800 3227⁄32 (72.2) 421⁄32 (118.3) 511⁄32 (135.7) 6¼ (158.8) 2½ (63.5) 2 (50.8) 9⁄16 (14.3) 3⁄8 (9.5)
E
H
F
GA
B
C
D
Fig, 2
A
C
D
Fig. 1
Dimensions
Disclaimer Notice – Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product selected for
their own applications. Littelfuse products are not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at www.littelfuse.com/product-disclaimer.
Littelfuse.com/L60S-KLC
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L60S/KLC SERIES HIGH-SPEED ROUND BODY
N nfluséi C€
% litleltuse'
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POWR-GARD® Blocks & Holders
LSCR SERIES HIGH-SPEED FUSE BLOCKS
Description
Littelfuse LSCR series is a comprehensive line of modular
fuse blocks, designed to accommodate a wide range of
high-speed and UL power fuses. These LSCR series blocks
have modular stud type design that enables easy mounting
in panel boards.
LSCR series blocks are CE Certified and RoHS Compliant.
Features/Benefi ts
Modular design reduces inventory requirements
Sold in pairs for convenience
Supplied with nut and belleville washer
200 kA short-circuit withsand rating
Constructed of molded phenolic (with plated steel studs)
provide greater heat dissapation
Electrical & Mechanical Specifi cations
700 V/1000 V
Specifi cations
Voltage Rating
700 V / 1000 V
Ampere Ratings 400 A, 800 A and 1200 A
Withstand Rating 200 kA
Approvals UL Recognized (File: E14721)
cURus Recognized (E14721)
CSA Certifi ed (File: 73160)
Material
Base Molded phenolic or thermoplastic
Terminal Construction Plated steel
Flammability Rating UL 94 V-0
Environmental RoHS Compliant
Country of Origin LSCR0xx - China
LSCR1xx - USA
Web Resources
For more information, visit: Littelfuse.com/lscr
CATALOG/
ORDERING
NUMBER
AMPERE
RATING
VOLTAGE
RATING
TERMINAL
(STUD)
MATERIAL
INSULATOR
TERMINAL
(STUD) SIZE
STUD TORQUE MOUNTING
FASTNER
SIZE
FASTENER
TORQUE AGENCY APPROVALS
MATERIAL MAX. BASE
TEMPERATURE (in.lbs) (N-m) (in.lbs) (N-m) UR cURus CSA
LSCR001
400 A 700 V ac/dc Plated Steel
Molded
Phenolic 150 °C (302 °F) ¼ – 2 0 U N C 61 6.9 #10 20–25 2.3–2.8 • •
LSCR002
800 A 700 V ac/dc Plated Steel
Molded
Phenolic 150 °C (302 °F) ³/8–16 UNC 192 21.7 #10
20–25 2.3–2.8
• •
LSCR101
400 A 1000 V ac/dc Steel, Zinc Plated
Thermoplastic 125 °C (257 °F) ¼ – 2 0 U N C 75 8.5 #10
25–30 2.8–3.4
•
LSCR102
800 A 1000 V ac/dc Steel, Zinc Plated
Thermoplastic 125 °C (257 °F) ³/8–16 UNC 230 26 #10 25–30 2.8–3.4 •
LSCR103
1200 A 1000 V ac/dc Steel, Zinc Plated
Thermoplastic 125 °C (257 °F) ½ – 1 3 U N C 300 34 ¼ "
25–30 2.8–3.4
•
Littelfuse.com/LSCR
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LSCR SERIES HIGH-SPEED FUSE BLOCKS
[I EEJ‘
4‘ m m
n a
we]
« 7 7
4*; ma w a
[I ESJREF l7 5
2 62 7 ' EX
:3 [I CIS] s 5
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[El Ell] REF, [I 89]
7‘ 4
E U. 29]
7 [a 2,] ‘0‘ 5
’ [ 0‘ 42]
7 a
«Law 7 [315' a]
P5 t ‘ 35
. [L DU] (EX) [—1/2713 M 2‘
mm
52
7 E f, 82‘ e
H‘ [u as] [327]
54 9‘ a
[a [a [0‘ 3"”
litlelfuse'
mm \ AW Wu
POWR-GARD® Blocks & Holders
LSCR SERIES HIGH-SPEED FUSE BLOCKS
Dimensions mm (inches)
CHICAGO, ILLINOIS 60631
3RD ANGLE
PROJECTION
Littelfuse®REVISION DRWG NO.
TITLE
DRW DATE
GRAMS/PIECE
FINISH GOOD WT
MATL SPEC FINISH
UNLESS OTHERWISE SPECIFIED, DIMENSIONS ARE IN MILLIMETERS, DIMENSIONS IN
BRACKETS [ ] ARE INCHES DIMENSIONING AND DO NOT INCLUDE PLATING. TOLERANCING
TO BE INTERPRETED IN ACCORDANCE WITH ANSI Y14.5M-1994
DENOTES CRITICAL CHARACTERISTICS.
DENOTES CPK DIMENSIONS, -MINIMUM CPK VALUE
DENOTES A CHARACTERISTIC THAT PROVIDES AN INDICATION
OF PROCESS PERFORMANCE. PROCEDURE FOR MEASUREMENT
AND TRACKING TO BE DEFINED IN
LITTELFUSE INSPECTION INSTRUCTIONS.
DENOTES CP DIMENSIONS, -MINIMUM CP VALUE
MUST BE WITHIN THE DIMENSIONAL LIMITATIONS
SHOWN ON DRAWING AND INITIALLY LOCATED TO
ALLOW FOR MAXIMUM TOOL LIFE.
CPK
CP
SHEET 1 OF 1
SCALE
AOL-LSCR103
B
myork 9/2/2015
1000V 1200A FUSE HOLDER OUTLINE
NTS
REVISION
REV DATE DESCRIPTION
A 5/17/16 515753GCP - RELEASE PER EM2797 MRY
LSCR103
CHICAGO, ILLINOIS 60631
3RD ANGLE
PROJECTION
AOL-LSCR000
Littelfuse
®REVISION DRWG NO.
TITLE
B
DRW DATE
GRAMS/PIECE
FINISH GOOD WT
MYORK 2/17/2015
MATL SPEC FINISH
UNLESS OTHERWISE SPECIFIED, DIMENSIONS ARE IN MILLIMETERS, DIMENSIONS IN
BRACKETS [ ] ARE INCHES DIMENSIONING AND DO NOT INCLUDE PLATING. TOLERANCING
TO BE INTERPRETED IN ACCORDANCE WITH ANSI Y14.5M-1994
DENOTES CRITICAL CHARACTERISTICS.
DENOTES CPK DIMENSIONS, -MINIMUM CPK VALUE
DENOTES A CHARACTERISTIC THAT PROVIDES AN INDICATION
OF PROCESS PERFORMANCE. PROCEDURE FOR MEASUREMENT
AND TRACKING TO BE DEFINED IN
LITTELFUSE INSPECTION INSTRUCTIONS.
DENOTES CP DIMENSIONS, -MINIMUM CP VALUE
MUST BE WITHIN THE DIMENSIONAL LIMITATIONS
SHOWN ON DRAWING AND INITIALLY LOCATED TO
ALLOW FOR MAXIMUM TOOL LIFE.
CPK
CP
SHEET 1 OF 1
SCALE
LSCR SERIES OUTLINE
NTS
REVISION
REV DATE DESCRIPTION
A2/17/2015 514064GCP - RELEASE MRY
62.87
[2.48]
33.46
[1.32]
6.35
[0.25]
17.78
[0.70]
47.63
[1.88]
33.02
[1.30]
17.78
[0.70]
53.98
[2.13]
40.64
[1.60]
25.40
[1.00]
12.70
[0.50]
25.40
[1.00]
92.25
[3.63]
60.33
[2.38]
12.70
[0.50]
1/4-20" x 1.00"
USABLE LENGTH
3/8-16" x 1.00"
USABLE LENGTH
5.15 x 7.62 SLOT
[0.203 x 0.30]
5.15 x 7.62 SLOT
[0.203 x 0.30]
PART NUMBER VOLTAGE RATING AMPERE RATING SUGGESTED TORQUE
LSCR001 700 400A 6.8 N-m (61 IN-LBS)
LSCR002 700 800A 21.6 N-m (192 IN-LBS)
SPECIFICATIONS:
VOLTAGE RATING: SEE CHART
AMPERE RATING: SEE CHART
INTERRUPT RATING: 200kA AC/ 20kA DC
SUGGESTED TORQUE: SEE CHART
APPROVALS: UL RECOGNIZED (FILE NO. E14721)
CSA CERTIFIED (FILE NO. 73160)
DATA SHEET REVISION: 021115
LSCR001 LSCR002
6.35
[0.25]
LSCR001
CHICAGO, ILLINOIS 60631
3RD ANGLE
PROJECTION
Littelfuse®REVISION DRWG NO.
TITLE
DRW DATE
GRAMS/PIECE
FINISH GOOD WT
MATL SPEC FINISH
UNLESS OTHERWISE SPECIFIED, DIMENSIONS ARE IN MILLIMETERS, DIMENSIONS IN
BRACKETS [ ] ARE INCHES DIMENSIONING AND DO NOT INCLUDE PLATING. TOLERANCING
TO BE INTERPRETED IN ACCORDANCE WITH ANSI Y14.5M-1994
DENOTES CRITICAL CHARACTERISTICS.
DENOTES CPK DIMENSIONS, -MINIMUM CPK VALUE
DENOTES A CHARACTERISTIC THAT PROVIDES AN INDICATION
OF PROCESS PERFORMANCE. PROCEDURE FOR MEASUREMENT
AND TRACKING TO BE DEFINED IN
LITTELFUSE INSPECTION INSTRUCTIONS.
DENOTES CP DIMENSIONS, -MINIMUM CP VALUE
MUST BE WITHIN THE DIMENSIONAL LIMITATIONS
SHOWN ON DRAWING AND INITIALLY LOCATED TO
ALLOW FOR MAXIMUM TOOL LIFE.
CPK
CP
SHEET 1 OF 1
SCALE
AOL-LSCR101
B
myork 1/6/2015
1000V 400A FUSE HOLDER OUTLINE
NTS
REVISION
REV DATE DESCRIPTION
A 5/17/16 515753GCP - RELEASE PER EM2797 MRY
LSCR101
CHICAGO, ILLINOIS 60631
3RD ANGLE
PROJECTION
Littelfuse®REVISION DRWG NO.
TITLE
DRW DATE
GRAMS/PIECE
FINISH GOOD WT
MATL SPEC FINISH
UNLESS OTHERWISE SPECIFIED, DIMENSIONS ARE IN MILLIMETERS, DIMENSIONS IN
BRACKETS [ ] ARE INCHES DIMENSIONING AND DO NOT INCLUDE PLATING. TOLERANCING
TO BE INTERPRETED IN ACCORDANCE WITH ANSI Y14.5M-1994
DENOTES CRITICAL CHARACTERISTICS.
DENOTES CPK DIMENSIONS, -MINIMUM CPK VALUE
DENOTES A CHARACTERISTIC THAT PROVIDES AN INDICATION
OF PROCESS PERFORMANCE. PROCEDURE FOR MEASUREMENT
AND TRACKING TO BE DEFINED IN
LITTELFUSE INSPECTION INSTRUCTIONS.
DENOTES CP DIMENSIONS, -MINIMUM CP VALUE
MUST BE WITHIN THE DIMENSIONAL LIMITATIONS
SHOWN ON DRAWING AND INITIALLY LOCATED TO
ALLOW FOR MAXIMUM TOOL LIFE.
CPK
CP
SHEET 1 OF 1
SCALE
AOL-LSCR101
B
myork 1/6/2015
1000V 400A FUSE HOLDER OUTLINE
NTS
REVISION
REV DATE DESCRIPTION
A 5/17/16 515753GCP - RELEASE PER EM2797 MRY
LSCR002
CHICAGO, ILLINOIS 60631
3RD ANGLE
PROJECTION
AOL-LSCR000
Littelfuse
®REVISION DRWG NO.
TITLE
B
DRW DATE
GRAMS/PIECE
FINISH GOOD WT
MYORK 2/17/2015
MATL SPEC FINISH
UNLESS OTHERWISE SPECIFIED, DIMENSIONS ARE IN MILLIMETERS, DIMENSIONS IN
BRACKETS [ ] ARE INCHES DIMENSIONING AND DO NOT INCLUDE PLATING. TOLERANCING
TO BE INTERPRETED IN ACCORDANCE WITH ANSI Y14.5M-1994
DENOTES CRITICAL CHARACTERISTICS.
DENOTES CPK DIMENSIONS, -MINIMUM CPK VALUE
DENOTES A CHARACTERISTIC THAT PROVIDES AN INDICATION
OF PROCESS PERFORMANCE. PROCEDURE FOR MEASUREMENT
AND TRACKING TO BE DEFINED IN
LITTELFUSE INSPECTION INSTRUCTIONS.
DENOTES CP DIMENSIONS, -MINIMUM CP VALUE
MUST BE WITHIN THE DIMENSIONAL LIMITATIONS
SHOWN ON DRAWING AND INITIALLY LOCATED TO
ALLOW FOR MAXIMUM TOOL LIFE.
CPK
CP
SHEET 1 OF 1
SCALE
LSCR SERIES OUTLINE
NTS
REVISION
REV DATE DESCRIPTION
A2/17/2015 514064GCP - RELEASE MRY
62.87
[2.48]
33.46
[1.32]
6.35
[0.25]
17.78
[0.70]
47.63
[1.88]
33.02
[1.30]
17.78
[0.70]
53.98
[2.13]
40.64
[1.60]
25.40
[1.00]
12.70
[0.50]
25.40
[1.00]
92.25
[3.63]
60.33
[2.38]
12.70
[0.50]
1/4-20" x 1.00"
USABLE LENGTH
3/8-16" x 1.00"
USABLE LENGTH
5.15 x 7.62 SLOT
[0.203 x 0.30]
5.15 x 7.62 SLOT
[0.203 x 0.30]
PART NUMBER VOLTAGE RATING AMPERE RATING SUGGESTED TORQUE
LSCR001 700 400A 6.8 N-m (61 IN-LBS)
LSCR002 700 800A 21.6 N-m (192 IN-LBS)
SPECIFICATIONS:
VOLTAGE RATING: SEE CHART
AMPERE RATING: SEE CHART
INTERRUPT RATING: 200kA AC/ 20kA DC
SUGGESTED TORQUE: SEE CHART
APPROVALS: UL RECOGNIZED (FILE NO. E14721)
CSA CERTIFIED (FILE NO. 73160)
DATA SHEET REVISION: 021115
LSCR001 LSCR002
6.35
[0.25]
LSCR102
CHICAGO, ILLINOIS 60631
3RD ANGLE
PROJECTION
Littelfuse®REVISION DRWG NO.
TITLE
DRW DATE
GRAMS/PIECE
FINISH GOOD WT
MATL SPEC FINISH
UNLESS OTHERWISE SPECIFIED, DIMENSIONS ARE IN MILLIMETERS, DIMENSIONS IN
BRACKETS [ ] ARE INCHES DIMENSIONING AND DO NOT INCLUDE PLATING. TOLERANCING
TO BE INTERPRETED IN ACCORDANCE WITH ANSI Y14.5M-1994
DENOTES CRITICAL CHARACTERISTICS.
DENOTES CPK DIMENSIONS, -MINIMUM CPK VALUE
DENOTES A CHARACTERISTIC THAT PROVIDES AN INDICATION
OF PROCESS PERFORMANCE. PROCEDURE FOR MEASUREMENT
AND TRACKING TO BE DEFINED IN
LITTELFUSE INSPECTION INSTRUCTIONS.
DENOTES CP DIMENSIONS, -MINIMUM CP VALUE
MUST BE WITHIN THE DIMENSIONAL LIMITATIONS
SHOWN ON DRAWING AND INITIALLY LOCATED TO
ALLOW FOR MAXIMUM TOOL LIFE.
CPK
CP
SHEET 1 OF 1
SCALE
AOL-LSCR102
B
myork 9/2/2015
1000V 800A FUSE HOLDER OUTLINE
NTS
REVISION
REV DATE DESCRIPTION
A 5/17/16 515753GCP - RELEASE PER EM2797 MRY
Littelfuse.com/LSCR
© 2019 Littelfuse, Inc.
Rev: 073119
2 of 3
POWR-SPEED® Fuse Accessories
Littelfuse.com/powr-speed
© 2019 Littelfuse, Inc.
45 of 52
LSCR SERIES HIGH-SPEED FUSE BLOCKS
tleltuse‘
u \ Am,
POWR-GARD® Blocks & Holders
LSCR SERIES HIGH-SPEED FUSE BLOCKS
FUSE SERIES
CATALOG NUMBER LSCR001 LSCR002 LSCR101 LSCR102 LSCR103
TERMINAL SIZE 1/4–20 UNC 3/8–16 UNC 1/4–20 UNC 3/8–16 UNC 1/2–13 UNC
VOLTAGE RATING 700 V ac/dc 700 V ac/dc 1000 V ac/dc 1000 V ac/dc 1000 V ac/dc
AMPERE RATING 400 A 800 A 400 A 800 A 1200 A
L15S 70–400 X X
500–800 X X
L17T 70–250 X X
300–800 X X
L25S 35–200 X X
225–800 X X
L50S
35–200 X X
225–800 X X
700–800 X
L50QS
35–200 X X
225–800 X X
700–800 X
L60S
35–200 X X
225–800 X X
700–800 X
KLC
35–60 X X
70–800 X X
225–800 X
L70S
35–100 X X
125–800 X X
450–800 X
L70QS
35–100 X X
125–800 X X
450–800 X
JLLN
70–200 X X
225–800 X X
700–1200 X
JLLS
70–200 X X
225–800 X X
700–1200 X
JLS
70–100 X X
110 –200 X X
225–400 X X
450–600 X X
SPFJ
70–100 X
125–200 X
250–400
X
450
X
L75QS
35–100
X
125–800
X
450–800
X
Disclaimer Notice – Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product selected for
their own applications. Littelfuse products are not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at www.littelfuse.com/product-disclaimer.
High-Speed Fuse Block Selection Guide
Littelfuse.com/LSCR
© 2019 Littelfuse, Inc.
Rev: 073119
3 of 3
POWR-SPEED® Fuse Accessories
Littelfuse.com/powr-speed
© 2019 Littelfuse, Inc.
46 of 52
LSCR SERIES HIGH-SPEED FUSE BLOCKS
@-
% litleltuse‘
POWR-GARD® Blocks & Holders
LSCR SERIES HIGH-SPEED FUSE BLOCKS
FUSE SERIES
CATALOG NUMBER LSCR001 LSCR002 LSCR101 LSCR102 LSCR103
TERMINAL SIZE 1/4–20 UNC 3/8–16 UNC 1/4–20 UNC 3/8–16 UNC 1/2–13 UNC
VOLTAGE RATING 700 V ac/dc 700 V ac/dc 1000 V ac/dc 1000 V ac/dc 1000 V ac/dc
AMPERE RATING 400 A 800 A 400 A 800 A 1200 A
L15S 70–400 X X
500–800 X X
L17T 70–250 X X
300–800 X X
L25S 35–200 X X
225–800 X X
L50S
35–200 X X
225–800 X X
700–800 X
L50QS
35–200 X X
225–800 X X
700–800 X
L60S
35–200 X X
225–800 X X
700–800 X
KLC
35–60 X X
70–800 X X
225–800 X
L70S
35–100 X X
125–800 X X
450–800 X
L70QS
35–100 X X
125–800 X X
450–800 X
JLLN
70–200 X X
225–800 X X
700–1200 X
JLLS
70–200 X X
225–800 X X
700–1200 X
JLS
70–100 X X
110 –200 X X
225–400 X X
450–600 X X
SPFJ
70–100 X
125–200 X
250–400
X
450
X
L75QS
35–100
X
125–800
X
450–800
X
Disclaimer Notice – Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product selected for
their own applications. Littelfuse products are not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at www.littelfuse.com/product-disclaimer.
High-Speed Fuse Block Selection Guide
Littelfuse.com/LSCR
© 2019 Littelfuse, Inc.
Rev: 073119
3 of 3
POWR-SPEED® Accessories
MS SERIES HIGH-SPEED FUSE MICROSWITCH
1000C Contact Insulation Voltage (1000, 1500)
Description
Littelfuse MS series external mount microswitches offer
permanent blown fuse indication to PSR series high-speed
square-body semiconductor fuses. They have one normally
open (N.O.) and one normally closed (N.C.) contact rated for
4 A, 250 V ac.
These microswitches have a visual red flap or arm indicator
that releases after fuse blown condition and can also be
used for resetting the microswitch contacts.
Features/Benefi ts
Available in two sizes to fi t PSR series fuse case sizes
30–33 and 70–73
Internal microswitch UL Listed
Red fl ap visual indicator and contact reset mechanism
Minimum positive operating voltage and current
at 4 V / 1 mA
Electrical Characteristics
Specifi cations
Voltage Rating See Electrical Characteristics table
Amperage Rating See Electrical Characteristics table
Interrupting Rating See Electrical Characteristics table
-60 °C to +125 °C
Relative Humidity 95 %
Contact Silver-nickel plated brass
Approvals Internal microswitch part number:
U83161.8, Listed under UL File: E42016
Flammability UL 94 V2
Environmental RoHS Compliant
Country of Origin China
Ordering Information
SERIES FUSE CASE
SIZE
CONTACT
INSULATION
VOLTAGE
CATALOG
NUMBER
ORDERING
NUMBER
MS 30–33 1000C MS3H1000C MS3H1000C
MS 70–73 1000C MS7H1500C MS7H1500C
CATALOG
NUMBER /
ORDERING
NUMBER
INDICATING
STYLE
INSULATION
VOLTAGE
RATING
(V AC)
FUSE
CASE
SIZE
POSITIVE
OPERATING
MIN VOLTAGE /
MIN CURRENT
INTERRUPTING RATING
OPERATING
TEMP
RELATIVE
HUMIDITY
PACK
QUANTITY
CURRENT
NON-INDUCTIVE
LOAD
INDUCTIVE LOAD
(DC L /R=25MS)
30 V 110 V 250 V 30 V 110 V 250 V
MS3H1000C* Standard
NO-NC 1000 30, 31,
32, 33
4 V / 1 mA
ac (50/60 Hz) 5 A 5 A 5 A 5 A 5 A 4 A -60 °C to
+125 °C 95 % 3 pcs/bag
dc 5 A 0.6 A 0.3 A 3 A 0.2 A 0.1 A
MS7H1500C* Standard
NO-NC 1500 70, 71,
72, 73
ac (50/60 Hz) 5 A 5 A 5 A 5 A 5 A 4 A -60 °C to
+125 °C 95 % 3 pcs/bag
dc 5 A 0.6 A 0.3 A 3 A 0.2 A 0.1 A
* Contains internal microswitch (part number: U83161.8), Listed under UL File: E42016.
Littelfuse.com/microswitch
© 2019 Littelfuse, Inc.
Rev: 1-B-073119
1 of 3
POWR-SPEED® Fuse Accessories
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© 2019 Littelfuse, Inc.
47 of 52
MS SERIES HIGH-SPEED FUSE MICROSWITCH
®C€N
4‘8?
Q —
% litleltuse‘
upmmum \ ”3mean
POWR-GARD® Fuse
L17T SERIES TELCOM POWER FUSE
Description
Specifically designed for short-circuit protection of
telecommunications circuits, the Littelfuse L17T series fuses
provide reliable protection of sensitive dc power distribution
systems. Constructed with silver plated elements for low
I2t and peak let-through, these advanced fuses virtually
eliminate equipment damage due to surges and spikes. The
L17T series fuse unique element geometry also provides
cooler running temperatures, helping to minimize heat
within enclosures.
Features
Low I2t
Extremely current-limiting
Low operating temperature
170 V dc rating
170 V dc • Current-Limiting • 70–1200 A
Recommended Fuse Holders
LTFD 6001 and LTFD 1200 series, visit: Littelfuse.com/ltfd
Web Resources
For additional information, visit: Littelfuse.com/l17t
Ordering Information
AMPERE RATINGS
70 125 200 300 450 800 1100
90 150 225 350 500 900 1200
100 175 250 400 600 1000 —
SERIES VOLTAGE AMPERAGE CATALOG
NUMBER
ORDERING
NUMBER
L17T 170 1200 L17T 1200 L17T1200V
A
B
C
D
F
G
E
H
Fig. 3
AMPERE
RATING
DIMENSIONS INCHES (mm)
A B C D E F G H
70–250 15⁄32
(29.4)
17⁄8
(47.6)
23⁄16
(55.6)
221⁄32
(67.5)
1
(25.4)
7⁄8
(22.2)
0.327
(8.3)
3⁄16
(4.8)
300–800 11⁄4
(31.8)
115 ⁄16
(49.2)
29⁄16
(65.1)
31⁄2
(88.9)
11⁄2
(38.1)
1
(25.4)
13 ⁄32
(10.3)
1⁄4
(6.35)
900–1200 111 ⁄32
(34.0) — — 41⁄16
(103.1) —11⁄2
(38.1) —
1⁄4
(6.35)
Dimensions
Inches (mm)
Disclaimer Notice – Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product selected for
their own applications. Littelfuse products are not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at www.littelfuse.com/product-disclaimer.
Specifi cations
Voltage Rating 170 V dc
Interrupting Rating 100 kA
Ampere Range 70–1200 A
Approvals UL Recognized (File: E71611)
CSA Recognized (File: LR29862)
Littelfuse.com/L17T
Rev: 022519
© 2019 Littelfuse, Inc.
1 of 1
Special Purpose Fuses – Telecommunications
Littelfuse.com/powr-speed
© 2019 Littelfuse, Inc.
48 of 52
L17T SERIES FUSES
“(€69-
% litleltuse'
bperluseADphad \ Answeumhvemd
POWR-GARD® Fuse
L17T SERIES TELCOM POWER FUSE
Description
Specifically designed for short-circuit protection of
telecommunications circuits, the Littelfuse L17T series fuses
provide reliable protection of sensitive dc power distribution
systems. Constructed with silver plated elements for low
I2t and peak let-through, these advanced fuses virtually
eliminate equipment damage due to surges and spikes. The
L17T series fuse unique element geometry also provides
cooler running temperatures, helping to minimize heat
within enclosures.
Features
Low I2t
Extremely current-limiting
Low operating temperature
170 V dc rating
170 V dc • Current-Limiting • 70–1200 A
Recommended Fuse Holders
LTFD 6001 and LTFD 1200 series, visit: Littelfuse.com/ltfd
Web Resources
For additional information, visit: Littelfuse.com/l17t
Ordering Information
AMPERE RATINGS
70 125 200 300 450 800 1100
90 150 225 350 500 900 1200
100 175 250 400 600 1000 —
SERIES VOLTAGE AMPERAGE CATALOG
NUMBER
ORDERING
NUMBER
L17T 170 1200 L17T 1200 L17T1200V
A
B
C
D
F
G
E
H
Fig. 3
AMPERE
RATING
DIMENSIONS INCHES (mm)
A B C D E F G H
70–250 15⁄32
(29.4)
17⁄8
(47.6)
23⁄16
(55.6)
221⁄32
(67.5)
1
(25.4)
7⁄8
(22.2)
0.327
(8.3)
3⁄16
(4.8)
300–800 11⁄4
(31.8)
115 ⁄16
(49.2)
29⁄16
(65.1)
31⁄2
(88.9)
11⁄2
(38.1)
1
(25.4)
13 ⁄32
(10.3)
1⁄4
(6.35)
900–1200 111 ⁄32
(34.0) — — 41⁄16
(103.1) —11⁄2
(38.1) —
1⁄4
(6.35)
Dimensions
Inches (mm)
Disclaimer Notice – Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product selected for
their own applications. Littelfuse products are not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at www.littelfuse.com/product-disclaimer.
Specifi cations
Voltage Rating 170 V dc
Interrupting Rating 100 kA
Ampere Range 70–1200 A
Approvals UL Recognized (File: E71611)
CSA Recognized (File: LR29862)
Littelfuse.com/L17T
Rev: 022519
© 2019 Littelfuse, Inc.
1 of 1
POWR-GARD® Fuse
TLS SERIES TELECOM POWER FUSE
170 V dc • Current-Limiting • 1–125 A
Description
Littelfuse TLS series fuses are designed specifically for
the protection of telecommunications equipment. TLS
fuses have been engineered to operate up to 170 V dc to
provide current-limiting short-circuit protection for cables
and components found in the dc power distribution circuits
of telecommunications systems. The compact design and
multiple mounting configurations of the TLS series allow it to
be used in a variety of applications.
Features
170 V dc rating
Current-limiting
1–125 amperes rating
Multiple mounting confi gurations — cartridge, vertical,
leaded, bolt-in, or solder type. See dimensions on the
following two pages for mounting style details.
RoHS Compliant
Recommended Fuse Holders
LFTD series disconnect switches
LFT30060 for TLS series cartridge style fuse
Contact factory for more information.
Web Resources
For additional information, visit: Littelfuse.com/tls
Specifi cations
Voltage Rating 170 V dc
Ampere Range 1–125 amperes
Interrupting Rating 100 kA
Approvals UL Recognized (File: E71611)
Construction Body: glass melamine
Caps: silver-plated brass
Environmental RoHS Compliant, lead (Pb) free
Ordering Information
AMPERE RATINGS
1 6 25 50 90
2 10 30 60 100
3 15 35 70 110*
5 20 40 80 125*
*Available in standard cartridge, LSE solder, and LR bolt-in.
Part Numbering System
0TLS xxx T –
Package Quantity
Series Mounting Options
Amp Code
T = 10
S = 20 (only LSA)
Blank = Cartridge
XV = Vertical
XL = Leaded
XLB = Bolt-In
XLS = Solder
XMB = Solder (Mid-Board Mount)
XLSE = Solder†
XLR = Bolt-In†
LSA = Solder
SERIES
AMPERE
MOUNTING
METHOD
MOUNTING
SUFFIX
CATALOG
NUMBER
ORDERING
NUMBER
FUSE
LABEL ID
TLS 6Cartridge –TLS006 0TLS006.T TLS 6A
TLS 15 Vertical VTLS015V 0TLS015.TXV TLS 15A-V
TLS 35 Leaded LTLS035L 0TLS035.TXL TLS 35A-L
TLS 50 Bolt-In LB TLS050LB 0TLS050.TXLB TLS 50A-LB
TLS 80 Solder LS TLS080LS 0TLS080.TXLS TLS 80A-LS
TLS 100 Solder MB TLS100MB 0TLS100.TXMB TLS 100A-MB
TLS 125 Solder LSE TLS125LSE 0TLS125.TXLSE TLS 125A-LSE
TLS 125 Bolt-In LR TLS125LR 0TLS125.T XLR TLS 125A-LR
TLS 30 Solder LSA TLS030LSA 0TLS030.SLSA TLS 30A-LSA
†Option is available for 35 to 125 amperage only
Littelfuse.com/tls
© 2019 Littelfuse, Inc.
Rev: 1-B-073119
1 of 4
Special Purpose Fuses – Telecommunications
Littelfuse.com/powr-speed
© 2019 Littelfuse, Inc.
49 of 52
TLS SERIES FUSES
TLS—L
% litleltuse'
POWR-GARD® Fuse
TLS SERIES TELECOM POWER FUSE
TLS-LS
.944
.877
REF. +.020
-.017
TLS-LS
Pad Layout
TLS-V
Pad Layout
TLS-V
TLS-MB TLS-MB
Pad Layout
TLS-LSA TLS-LSA
Pad Layout
TLS-LB TLS-L
TLS-L
Pad Layout
TLS
0. 282 ± 0. 010
Dimensions
Inches
Recommended
mounting hardware:
#8 slotted hex washer
head machine screw
Torque: 10 in-lb
TLS-LS
.944
.877
REF. +.020
-.017
TLS-LS
Pad Layout
TLS-V
Pad Layout
TLS-V
TLS-MB TLS-MB
Pad Layout
TLS-LSA TLS-LSA
Pad Layout
TLS-LB TLS-L
TLS-L
Pad Layout
TLS
0. 282 ± 0. 010
TLS-LS
.944
.877
REF. +.020
-.017
TLS-LS
Pad Layout
TLS-V
Pad Layout
TLS-V
TLS-MB TLS-MB
Pad Layout
TLS-LSA TLS-LSA
Pad Layout
TLS-LB TLS-L
TLS-L
Pad Layout
TLS
0. 282 ± 0. 010
Littelfuse.com/tls
© 2019 Littelfuse, Inc.
Rev: 1-B-073119
2 of 4
Special Purpose Fuses – Telecommunications
Littelfuse.com/powr-speed
© 2019 Littelfuse, Inc.
50 of 52
TLS SERIES FUSES
:7, SET
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POWR-GARD® Fuse
TLS SERIES TELECOM POWER FUSE
CHICAGO, ILLINOIS 60631
3RD ANGLE
PROJECTION
BOL-0TLS000LSE
Littelfuse
®
REVISION DRWG NO.
TITLE
A
DRWDATE
GRAMS/PIECE
FINISH GOOD WT
MYORK7/22/2015
MATL SPEC FINISH
UNLESS OTHERWISE SPECIFIED, DIMENSIONS ARE IN MILLIMETERS, DIMENSIONS IN
BRACKETS [ ] ARE INCHES DIMENSIONING AND DO NOT INCLUDE PLATING. TOLERANCING
TO BE INTERPRETED IN ACCORDANCE WITH ANSI Y14.5M-1994
DENOTES CRITICAL CHARACTERISTICS.
DENOTES CPK DIMENSIONS, -MINIMUM CPK VALUE
DENOTES A CHARACTERISTIC THAT PROVIDES AN INDICATION
OF PROCESS PERFORMANCE. PROCEDURE FOR MEASUREMENT
AND TRACKING TO BE DEFINED IN
LITTELFUSE INSPECTION INSTRUCTIONS.
DENOTES CP DIMENSIONS, -MINIMUM CP VALUE
MUST BE WITHIN THE DIMENSIONAL LIMITATIONS
SHOWN ON DRAWING AND INITIALLY LOCATED TO
ALLOW FOR MAXIMUM TOOL LIFE.
CPK
CP
SHEET 1 OF 1
SCALE
TLS-LSE OUTLINE
NTS
REVISION
REVDATE DESCRIPTION
A3/3/16 515620GCP - RELEASE PER SALES RELEASE EM2816 MRY
B5/29/19520867ECP/D - UPDATE DIMENSIONS MRY
15.42 ±0.30
0.607 ±0.012
[]
4.09 ±0.14
0.161 ±0.006
[]
4.75 ±0.18
0.187±0.007
[]
12.70±0.13
0.500 ±0.005
[]
14.22 ±0.13
0.560±0.005
[]
12.95-0.00
0.13
+
0.510-0.000
0.005
+
[]
24.49
[0.964]
MAX
21.59
[0.850]
MIN
1.32 ±0.13
0.052 ±0.005
[]
4.19 -0.00
0.13
+
0.165-0.000
0.005
+
[]
PAD LAYOUT
7.14 ±0.25
0.281 ±0.010
[]
4.19 ±0.14
0.165±0.006
[]
22.28 -0.35
0.59
+
0.877 -0.014
0.023
+
[]
23.98-0.43
0.51
+
0.944 -0.017
0.020
+
[]
(SEE NOTE 1)
NOTE:
1. MEASUREMENT TAKEN AT END OF TERMINALS.
LEAD-FREE SOLDERING PROFILE:
PRE-HEAT: ABOVE 130°C FOR 75 SECONDS MAX.
REFLOW: 278°C FOR 8 SECONDS MAX.
TIME: 250 SECONDS MAX.
MAX. TEMP: 280°C
14.30±0.25
0.563 ±0.010
[]
CHICAGO, ILLINOIS 60631
3RD ANGLE
PROJECTION
BOL-0TLS000LSE
Littelfuse
®
REVISION DRWG NO.
TITLE
A
DRWDATE
GRAMS/PIECE
FINISH GOOD WT
MYORK7/22/2015
MATL SPEC FINISH
UNLESS OTHERWISE SPECIFIED, DIMENSIONS ARE IN MILLIMETERS, DIMENSIONS IN
BRACKETS [ ] ARE INCHES DIMENSIONING AND DO NOT INCLUDE PLATING. TOLERANCING
TO BE INTERPRETED IN ACCORDANCE WITH ANSI Y14.5M-1994
DENOTES CRITICAL CHARACTERISTICS.
DENOTES CPK DIMENSIONS, -MINIMUM CPK VALUE
DENOTES A CHARACTERISTIC THAT PROVIDES AN INDICATION
OF PROCESS PERFORMANCE. PROCEDURE FOR MEASUREMENT
AND TRACKING TO BE DEFINED IN
LITTELFUSE INSPECTION INSTRUCTIONS.
DENOTES CP DIMENSIONS, -MINIMUM CP VALUE
MUST BE WITHIN THE DIMENSIONAL LIMITATIONS
SHOWN ON DRAWING AND INITIALLY LOCATED TO
ALLOW FOR MAXIMUM TOOL LIFE.
CPK
CP
SHEET 1 OF 1
SCALE
TLS-LSE OUTLINE
NTS
REVISION
REVDATE DESCRIPTION
A3/3/16 515620GCP - RELEASE PER SALES RELEASE EM2816 MRY
B5/29/19520867ECP/D - UPDATE DIMENSIONS MRY
15.42 ±0.30
0.607 ±0.012
[]
4.09 ±0.14
0.161 ±0.006
[]
4.75 ±0.18
0.187±0.007
[]
12.70±0.13
0.500 ±0.005
[]
14.22 ±0.13
0.560±0.005
[]
12.95-0.00
0.13
+
0.510-0.000
0.005
+
[]
24.49
[0.964]
MAX
21.59
[0.850]
MIN
1.32 ±0.13
0.052 ±0.005
[]
4.19 -0.00
0.13
+
0.165-0.000
0.005
+
[]
PAD LAYOUT
7.14 ±0.25
0.281 ±0.010
[]
4.19 ±0.14
0.165±0.006
[]
22.28 -0.35
0.59
+
0.877 -0.014
0.023
+
[]
23.98-0.43
0.51
+
0.944 -0.017
0.020
+
[]
(SEE NOTE 1)
NOTE:
1. MEASUREMENT TAKEN AT END OF TERMINALS.
LEAD-FREE SOLDERING PROFILE:
PRE-HEAT: ABOVE 130°C FOR 75 SECONDS MAX.
REFLOW: 278°C FOR 8 SECONDS MAX.
TIME: 250 SECONDS MAX.
MAX. TEMP: 280°C
14.30±0.25
0.563 ±0.010
[]
CHICAGO, ILLINOIS 60631
3RD ANGLE
PROJECTION
BOL-0TLS000LSE
Littelfuse
®
REVISION DRWG NO.
TITLE
A
DRWDATE
GRAMS/PIECE
FINISH GOOD WT
MYORK7/22/2015
MATL SPEC FINISH
UNLESS OTHERWISE SPECIFIED, DIMENSIONS ARE IN MILLIMETERS, DIMENSIONS IN
BRACKETS [ ] ARE INCHES DIMENSIONING AND DO NOT INCLUDE PLATING. TOLERANCING
TO BE INTERPRETED IN ACCORDANCE WITH ANSI Y14.5M-1994
DENOTES CRITICAL CHARACTERISTICS.
DENOTES CPK DIMENSIONS, -MINIMUM CPK VALUE
DENOTES A CHARACTERISTIC THAT PROVIDES AN INDICATION
OF PROCESS PERFORMANCE. PROCEDURE FOR MEASUREMENT
AND TRACKING TO BE DEFINED IN
LITTELFUSE INSPECTION INSTRUCTIONS.
DENOTES CP DIMENSIONS, -MINIMUM CP VALUE
MUST BE WITHIN THE DIMENSIONAL LIMITATIONS
SHOWN ON DRAWING AND INITIALLY LOCATED TO
ALLOW FOR MAXIMUM TOOL LIFE.
CPK
CP
SHEET 1 OF 1
SCALE
TLS-LSE OUTLINE
NTS
REVISION
REVDATE DESCRIPTION
A3/3/16 515620GCP - RELEASE PER SALES RELEASE EM2816 MRY
B5/29/19520867ECP/D - UPDATE DIMENSIONS MRY
15.42 ±0.30
0.607 ±0.012
[]
4.09 ±0.14
0.161 ±0.006
[]
4.75 ±0.18
0.187±0.007
[]
12.70±0.13
0.500 ±0.005
[]
14.22 ±0.13
0.560±0.005
[]
12.95-0.00
0.13
+
0.510-0.000
0.005
+
[]
24.49
[0.964]
MAX
21.59
[0.850]
MIN
1.32 ±0.13
0.052 ±0.005
[]
4.19 -0.00
0.13
+
0.165-0.000
0.005
+
[]
PAD LAYOUT
7.14 ±0.25
0.281 ±0.010
[]
4.19 ±0.14
0.165±0.006
[]
22.28 -0.35
0.59
+
0.877 -0.014
0.023
+
[]
23.98-0.43
0.51
+
0.944 -0.017
0.020
+
[]
(SEE NOTE 1)
NOTE:
1. MEASUREMENT TAKEN AT END OF TERMINALS.
LEAD-FREE SOLDERING PROFILE:
PRE-HEAT: ABOVE 130°C FOR 75 SECONDS MAX.
REFLOW: 278°C FOR 8 SECONDS MAX.
TIME: 250 SECONDS MAX.
MAX. TEMP: 280°C
14.30±0.25
0.563 ±0.010
[]
TLS-LSE
Dimensions are mm (in)
TLS-LSE
Pad Layout
Dimensions
Inches
TLS-LS
.944
.877
REF. +.020
-.017
TLS-LS
Pad Layout
TLS-V
Pad Layout
TLS-V
TLS-MB TLS-MB
Pad Layout
TLS-LSA TLS-LSA
Pad Layout
TLS-LB TLS-L
TLS-L
Pad Layout
TLS
0. 282 ± 0. 010
TLS-LSA
Dimensions are mm (in)
Note 1: Measurement taken at end of terminals
TLS-LSA
Pad Layout
TLS-LR
Dimensions are mm (in)
Ø14.27
[Ø0.562]
16.84
[0.663]
48.76
[1.920]
34.41
[1.355]
12.70
[0.500] R2.37
[R0.094]
6.77
[0.267]
38.45
[1.514]
Ø14.27
[Ø0.562]
16.84
[0.663]
48.76
[1.920]
34.41
[1.355]
12.70
[0.500] R2.37
[R0.094]
6.77
[0.267]
38.45
[1.514]
Ø14.27
[Ø0.562]
16.84
[0.663]
48.76
[1.920]
34.41
[1.355]
12.70
[0.500] R2.37
[R0.094]
6.77
[0.267]
38.45
[1.514]
Littelfuse.com/tls
© 2019 Littelfuse, Inc.
Rev: 1-B-073119
3 of 4
Special Purpose Fuses – Telecommunications
Littelfuse.com/powr-speed
© 2019 Littelfuse, Inc.
51 of 52
TLS SERIES FUSES
52 of 52
Littelfuse.com/powr-speed
© 2019 Littelfuse, Inc.
POWR-SPEED® Fuse
CROSS REFERENCE GUIDE
This guide covers the most popular
high-speed fuse types that Littelfuse
has in stock and ready to ship. The
cross reference is meant to serve as
a guide for quick identification and
product selection. We suggest you
check all applicable specifications
before making substitutions.
COMPETITOR LITTELFUSE
A60X L60S
A70P L70QS
A70QS L70QS
CHSF L50QS
FWA L15S † §
FWH L50QS
FWP L70QS
FWX L25S * †
KAA L15S
KAB L25S
KAC KLC
KBH L50S
PC_UD PSR
COMPETITOR LITTELFUSE
170M PSR
A_UD PSR
A013F L15S
A015F L15S
A015R L15S
A025F L25S
A050F L50S
A060F L60S
A070F L70S
A13X L15S
A25X L25S †
A50P (type 1 & 4) L50QS
A50QS L50QS
COMPETITOR LITTELFUSE
PSC PSR
RFA L15S
RFC KLC
RFL (750 V) L70S (700 V)
RFV L50S
SF13X L15S
SF25X L25S
SF50P L50S
SF60X L60S
SF70P L70S
XL25X L25S
XL50F L50S *
XL70F L70S *
* Check specific mounting dimensions before substituting.
† Check characteristics and dimensions for application before substituting.
§ Verify voltage for dc applications.
For more information or a complete listing of high-speed fuses offered visit Littelfuse.com/POWR-SPEED or call 1-800-TEC-FUSE.
Kaunas
Amsterdam
Bellingham
Boston
Fort Collins
Essen
Saskatoon
Seoul Tokyo
Tsukuba
Suzhou
Wuxi
Beijing
Seongnam
Shanghai
Kunshan
Taipei
Chu-pei
Dongguan
Shenzhen
Hong Kong
Lipa City
Singapore
São Paulo
Taguig
Legnago
Bremen
Lampertheim
Deventer
Charneca de Caparica
Chippenham
San Sabastian
Leiden
Lauf
Ozegna
Burlington
Beverly
Troy
Matamoros
Muzquiz
Piedras Negras
Eagle Pass
Manaus
Lake Mills
Rapid City
Chicago
Mount Prospect
Champaign
Fremont
Aliso Viejo
Long Beach
Milpitas
Orange
Santa Clara
Local Resources for a GLOBAL Market
Protection Relays & Controls Catalog (PF130N)
The comprehensive line of electronic and microprocessor-based
protection relays safeguard equipment and personnel to prevent
expensive damage, downtime or injury due to electrical faults.
Fuses and Fuse Holders Catalog (PF101N)
Littelfuse offers a complete circuit protection portfolio of
industrial power fuses, including time-saving indication products
for an instant visual blown-fuse identification.
POWR-GARD® Solar Catalog (PF140N)
POWR-GARD® Solar Products are designed specifically for
photovoltaic applications where issues such as heat, efficiency,
longevity and global standards impact the choices in selecting
circuit protection.
To view all Littelfuse product catalogs, visit our website at
littelfuse.com/Catalogs
Visit Technical Resources at Littelfuse.com
Technical information is only a click away. The Littelfuse Technical
Resources contains datasheets, product manuals, whitepapers,
application guides, demos, on-line design tools, and more.
An Extension of Your Team
Technical Hotline (800-TEC-FUSE or 800-832-3873)
Littelfuse engineers are a phone call away to help identify potential
issues and provide product recommendations to resolve problems.
Application and Field Support
Our experienced product and application engineers work step-by-
step with customers from design to installation to determine the
best solution.
% Littelfuse“
Expertise Apphcd | Answers Dchvcrcd
®@-@I®
“nuns-CE
Form: PF611
Rev: 4-B-080119
© 2019 Littelfuse, Inc.
Littelfuse products are certified to many standards around
the world. To check certifications on specific product
please refer to the product datasheet on Littelfuse.com.
Littelfuse World Headquarters
8755 West Higgins Road, Suite 500
Chicago, IL 60631, USA
Technical Support:
Tel: +1-800-TEC-FUSE
E-mail: techline@littelfuse.com
Customer Service:
Tel: +1-800-227-0029
E-mail: PG_CSG@littelfuse.com
Fax: +1-847-787-5190
Littelfuse SymCom
222 Disk Drive
Rapid City, SD 57701, USA
Technical Support:
Tel: +1-800-832-3873
E-mail: techline@littelfuse.com
Customer Service:
Tel: +1-800-227-0029
E-mail: PG_CSG@littelfuse.com
Fax: + 1-605-348-5685
Littelfuse Startco
Saskatoon, Canada
Tel: +1-306-373-5505
E-mail: techline@littelfuse.com
Disclaimer Notice – Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product selected for
their own applications. Littelfuse products are not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at www.littelfuse.com/product-disclaimer.
HF
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