Puls din rail power supply redundancy module 4080a puls yr40245 this redundancy module from puls has been manufactured to a high standard with a compact design that is ideal for installation in an enclosure and intended for general professional use such as in industrial control office communication and instrumentation equipmentthe psu is used to build redundant systems and has one input and one output to carry nominal currents up to 40a the output is equipped with a plug connector th