345 Series Fuseholders Datasheet by Littelfuse Inc.

awn €93.

Enclosed Fuseholders > Panel Mounted

Cartridge Fuse Holders

Specifications are subject to change without notice.

Revised: 07/22/19

RoHS

Product Characteristics

Compatible

Fuses For 3AB, 3AG, 5×20mm, or 2AG Fuses

Description

Designed to eliminate the possibility of electrical

shock, as defined in IEC standards 60127-6. The

universal fuseholder body will accept 3AB, 3AG, 5

× 20mm, and 2AG fuse sizes depending on knob

selected. Permits inventory reduction of bodies and

provides knob interchange versatility. Anti-tease feature

eliminates circuit interruption when knob is accidentally

depressed. Five fuseholder types assure design

flexibility. Available with two knob styles — screwdriver

slot or fingergrip. Available in two terminal styles

— dual-purpose for soldering or 3/16” NEMA quick

connect; and ¼” NEMA/DIN quick connect. Quick fuse

size identification is provided with letters on fingergrip

knob and color-coded screwdriver slot knobs.

Electrical

Insulation Resistance: 10,000 megohm minimum at

500 VDC. Contact Resistance: Less than .005 ohm

average at currents up to 1 ampere.

Mounting

Threaded styles withstand 15 in.-lb. mounting torque.

Low profile and High profile panel thickness: .032”

min./.310” max. Quick mount panel thickness: .012”

min./.360” max. Rear mount panel thickness: .012”

min./.260” max.

Molded Parts Body Material: Black glass-filled thermoplastic (UL

94V0).

Knob Material Grey, blue or black glass-filled thermoplastic (UL94 V-0)

Hex Nut Material: Black glass-filled thermoplastic.

Knob

Finger-Grip, Fuse Extractor type or Screwdriver Slot,

Fuse Extractor type with plated copper alloy insert.

Plated copper alloy contact clips. Spring loaded, locking

mechanism provides an anti-tease feature and will not

vibrate loose.

Terminals

Copper alloy. Tin-plated. Three styles available. A .187”

dual purpose terminal accepts wire for soldering or a

Quick-Connect receptacle. .187” terminal for NEMA

Quick-Connect and .250” terminal for NEMA/DIN Quick-

Connect available.

Ambient

Temperature –40ºC to +85ºC.

Hardware

Threaded style fuseholders are supplied with a

thermoplastic hex nut unassembled. Quick mount style

fuseholders are supplied with a push-on type retaining

nut, black oxide finish, unassembled. A synthetic rubber

“O” ring will be supplied only with the screwdriver

slot knob when the drip-proof version is requested.

To order with a metal internal tooth lockwasher (L)

and/or neoprene panel washer (N) and/or drip-proof

synthetic rubber “O” ring with Neoprene washer (NP)

[Screwdriver slot knob only], add the appropriate suffix

(L, N, or NP) respectively (or in combination) to the

catalog number. Accesories can be order by separately.

* Please refer to Fuseology section for information on proper fuseholder re-rating.

345 Series Shock-Safe Panel Mount Enclosed Fuse Holders

Agency Agency File

Number 3AG/AB 5×20mm 2AG

E14721 20A 250V 20A 250V 10A 250V

7316 20A 250V 20A 250V 10A 250V

40001642 10A 250V 10A 250V —

Additional Information

Datasheet Samples

Resources

Agency Approval

% Littelfuse“ L..pmuppm \ Amway: mmm <03 6cd="" ‘%="" uuu.="" mu:="" @="" @592="" d="" h‘”="" 1%="" 3i="" @="" mid="" ‘="" 2‘="" p="" a="" {wt="" *‘="" v="" *\="" r="" @="" 1;:="" w="" e/q="">

Enclosed Fuseholders > Panel Mounted

Cartridge Fuse Holders

Specifications are subject to change without notice.

Revised: 07/22/19

Ordering Part Numbering System to order complete fuse holder (body and knob)

Dimensions

.60" DIA.

.65" DIA.

.41" 1.59"

.50" MIN. 1.50" MAX.

Low Profile Fingergrip Knob

Rear Mount Fingergrip Knob

special 1/2" thread

.40"

1.35"

High Profile Screwdriver Slot Knob

.04"x.25"

.16"

1.59"

Low Profile Screwdriver Slot Knob

.04"x.25"

.16"

1.59"

Quick Mount Screwdriver Slot Knob

.04"x.25"

Terminal Styles

Suggested Mounting Holes

Bottom Terminal

.090" x .160"

HOLE .055"

HOLE

.070"

HOLE

3/16" DUAL

PURPOSE

SOLDER/QUICK

CONNECT

1/4" NEMA/DIN

QUICK CONNECT

3/16" NEMA

QUICK CONNECT

.187" .187" .250"

.475"

.480"

.460"

.465"

.500"

.505"

ABC

.187" QC

.250" QC

.53" .30" .020"

.59" .36" .032"

Right Angle Straight

"Push-On" Type Retaining Nut

for Quick Mount Fuseholder

Plastic Hex Nut with Flange

.91" DIA.

.63"

.19"

.65"

DIA.

.558"

HEX.

SPECIAL

1/2" THREAD

.60" DIA.

Accessory*

Lockwasher

Neoprene Washer

Drip-Proof "O" Ring**

with Neoprene Washer

Packing

For 100 Pieces (Bulk)

Terminals

3/16" (Rt. Angle)

Dual Purpose Solder/QC

3/16" (Straight)

Dual Purpose Solder/QC

3/16" (Rt. Angle)

NEMA QC

3/16" (Straight)

NEMA QC

1/4" (Rt. Angle)

NEMA/DIN QC

1/4" (Rt. Angle)

NEMA/DIN QC

Style

Low Profile Body

Black Fingergrip Knob

Rear Mount Body

Black Fingergrip Knob

High Profile Body

Screwdriver Slot Knob

Low Profile Body

Screwdriver Slot Knob

Quick Mount Body

Screwdriver Slot Knob

2AG - Blue Knob

3AG - Grey Knob

5 x 20mm - Black Knob

Fuse Size

2AG

.177" x .570"

3AG

.250" x 1.250"

5 x 20mm

.197" x .787"

0 345 3 LS 7 H X L N P

Series Name

*Optional (L,N,P) can be ordered

individually or in combination

**Screwdriver slot knob only

Example 03453LS7HXLNP - A 345 Series fuse holder for 3AG fuses with low profile body and a Screwdriver Slot knob, with

1/4" (Rt. Angle) Nema/Din QC terminals.

Note - If accessory is needed, add the "X" as filler on the ordering part number

Enclosed Fuseholders > Panel Mounted

Cartridge Fuse Holders

Specifications are subject to change without notice.

Revised: 07/22/19

Fuse Size Fingergrip Knob Screwdriver Slot Knob

2AG 03452LF1HX020 03452LS1HX020

3AG 03453LF1HX020 03453LS1HX020

5 × 20mm 03455LF1HX020 03455LS1HX020

H - 100 Pieces (Bulk)

X - Filler

Terminal Style Bottom Terminal Low Profile Body Part

Number***

High Profile Body Part

Number

Rear Mount Body Part

Number

Quick Mount Body

Part Number

3/16” Dual Purpose (Rt. Angle) 03453LF1ZX010 03453HS1ZX010 03453RF1ZX010 03453QS1ZX010

3/16” Dual Purpose (Straight) 03453LF2ZX010 03453HS2ZX010 03453RF2ZX010 03453QS2ZX010

3/16” NEMA QC (Rt. Angle) 03453LF3ZX010 03453HS3ZX010 03453RF3ZX010 03453QS3ZX010

3/16”NEMA QC (Straight) 03453LF4ZX010 03453HS4ZX010 03453RF4ZX010 03453QS4ZX010

¼” NEMA/DIN QC (Rt. Angle) 03453LF7ZX010 03453HS7ZX010 03453RF7ZX010 03453QS7ZX010

¼”NEMA/DIN QC (Straight) 03453LF8ZX010 03453HS8ZX010 03453RF8ZX010 03453QS8ZX010

***Low Profile Body will accept either Fingergrip or Screwdriver Slot Knob.

Z - 100 pieces (Bulk)

X - Filler

To Order Body Including Nut(s) Only

To Order Knob Only

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/disclaimer-electronics.

To Order Accesories Only

Accesory Packaging Part Number

ACS Rubber Washer Bulk (100 pieces) 09010002H

ACS Nut Bulk (100 pieces) 09030097H

ACS Lockwasher Bulk (100 pieces) 09050023H

ACS O-Ring Bulk (100 pieces) 09010134H

H - 100 Pieces (Bulk)