On Wednesday, December 4, 2019 at 10:22:47 AM UTC-5, dpb wrote:
On 12/4/2019 8:30 AM, trader_4 wrote:
...

A 240V breaker sits across both hot legs. I doubt it's code compliant
to use just half of it for a 120V circuit, but IDK. Fretwell?

Isn't. No dedicated neutral to the circuit that way.

There would be a neutral when you connect it. Right now there are two hot
legs from a 240V breaker, going to the receptacle. What I assume Clare
meant by "no need to change the breaker" is to just move one wire from the
existing breaker to the neutral bar. That would work, the only question
is if it's code compliant or not. I would not do it though, because
breakers are cheap and to do as suggested is going to be confusing for
anyone else who comes across it.








Only (used to be but even it isn't allowed any more) was the 3-wire
service for dryer-like appliances with the ground serving as secondary
110V circuit neutral. That now requires 4-wire, not just three.

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