Looking for some tips on making a nice little circuit breaker test box for work. I run across circuit breakers that have all sorts of charging motors, shunt trips and spring release coils that operate on all different voltages. I'm looking to make a nice little test box that will put out both variable AC and DC. I think 10A will be enough to do whatever I need. Input to the box would be 120VAC maybe to a variac. I have a 600V 50A full wave bridge I dug out of an old transfer switch. Where I'm only operating a coil here and there do I need a filter capacitor on the DC output? If so how big? The variac, is there a relatively inexpensive one I could find? I would ideally like to put it on a selector switch so I could vary the AC output from 120V down to 12V or lower. Then switch it to a DC through the bridge and have a variable DC from 120VDC down to 12VDC. Any thoughts on this? Good idea, bad idea? Just a simple little "cheater box" is what I'm looking for so I can test breaker functions while primary injection testing.
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