Except for the PFE700S, all the other models in the PFE series are fully regulated. The PFE700S (rates at up to 714 W) is semi-regulated and has a nominal output of 50 to 57VDC depending upon the load. This model is fully isolated and ideal as a source for an Intermediated Bus Architecture where a tightly regulated DC to DC converter is not required. These modules can be parallel connected using the droop-mode method and have no output voltage adjustment. The PFE700S is a standard full brick size module.