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Home Forums General Discussion Fire safety with 12V Re: Fire safety with 12V


Remember that all DC fuses and breakers must be manufactured and listed for DC service and listed for use in DC service. Arc flash is very different in DC than AC, since there’s never a return to zero voltage and current in DC. AC devices will catch fire, since they are not designed to open properly for use with DC.

Under NEC 2011, all DC breakers are also required to sense arc flash in the system and open immediately.

Don’t use automotive devices – unsafe and illegal in PV applications.