Probably a dumb question, but can't find an answer to it. Will AC switches and relays work for DC - IF - they are not switched while powered? I know what your saying, but, How about using a DPDT for reversing only when the power is off to the switch or relay? There will be no arc because power is off, and the actual contacts are of a large enough size to handle the current, so why not? Before I started to know enough, I did it quite often (used AC switches on DC) with out problems. Just want to know if its OK to do.