Friday, 30 November 2018

Correct Switch / Fuse Locations for Multi-SMPS Power Supply


What is the proper way to fuse and switch a power supply consisting of a bunch of SMPS like the following:


smps power supply


There would be up to 5 separate output voltages. The outputs shown are about 35W each. Other outputs would be less.



So currently I have a mockup that has a single fuse and a single switch on the AC load line.


Is this safe?


Would it be better to use a 2 pole switch to switch in both load an neutral? Why?


Should I fuse each SMPS separately? If yes, why and where?


Points labelled A, B, C and D are potential locations for reference.




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