Senior Advisor
Posts: 3,228
Registered: ‎04-30-2010

230V And Dedicated Neutral?

It seems that newer 230V single phase motors take 2 hots, a ground and a dedicated neutral.  If the wire goes back to the main box and is not a shared circuit, why is a dedicated neutral needed?  Why can't one simply parallel off the ground?  In the main box, the neutral and ground may connect to the same lug.  Why not at the other end?

I"m not talking about coming off a sub panel.

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