For question dealing with 120/240V single split phase electrical circuits.

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3
votes
3answers
172 views

What is wrong with this panel wiring?

I have a main breaker panel downstairs, and a subpanel upstairs. After I hired an electrician to rerun the service entry cables, nothing upstairs is right, and all the upstairs lights blew as soon as ...
1
vote
1answer
73 views

Code compliance with 120/240v outlet

I am updating the electrical in my garage. Right now, it has two GFCI 120v outlets, one on the outdoor outlets circuit and the other on the garage opener circuit. I am looking to add locking 240v ...
5
votes
4answers
9k views

Why Do 240V Circuits Not Require Neutral?

Someone told me that a 240V circuit does not require a neutral wire in the cable. Can anyone explain this phenomenon from the electricity perspective and generally explain why circuits do and do not ...
2
votes
1answer
861 views

Do 240V receptacle use the same connectors as 120V receptacles for the same amperage?

I feel like I'm missing something obvious. I know different plug styles are used based on a circuit's amperage (in the US) but is the same style of plug used for both 110V and 220V outlets of the same ...