[TCML] using an AC breaker for DC

[Nick Andrews <nicothefabulous@xxxxxxxxxxx>]

Okay, so this is marginally on topic, as it also applies to power cabinets for coils, etc.  The question is, can you safely use 125VAC-rated breakers on a DC circuit for 72VDC in a solar power application as a battery disconnect?  I told my brother that it was harder for a DC arc to extinguish, but that I thought they would be okay as a disconnect.  But I wanted the opinion of the power engineers here, so thanks for any input...

Nick A




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