Posted by DEnnis minn on September 10, 2019 at 16:32:45 from (67.4.25.11):
All,
I refrained from abswering a question about residential wiring in US (current NEC compliance). I would ask, does a two pole 20 amp wired for a single 120v receptacle would still protect the same as a single pole breaker.
This assumes one hot, one neutral, one equipment grounding conductor, properly landed at both ends at a typical home receptacle.
I read the other recent electrical question and I think that there was a bit of misguidance. 20 amps is 20 amps. Even though wiring a two pole breaker for a single pole would be a waste, however, it is still electrically viable and compliant. One hot at the breaker, one neutral on the bar, and a qualified EGC, continuous metallic conduit or wiring to the non-subpanel ground/neutral bus bar.
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