Share
Ask your DIY question — it’s all free from a real contractor.
Get straightforward guidance for home repairs, upgrades, and troubleshooting.
No signup required to start — just post your question.
220 3 wire Device to Panel with separate Ground and Neutral
ReportQuestion
Please briefly explain why you feel this question should be reported.
I am adding a 220 circuit to my panel for a 220 13amp table saw. I have four wires at the Panel (2 hot, 1 neutral, 1 ground) for the breaker, then running to the receptacle. The ground and neutral are Not connected in the panel. The panel has a ground post, but it is also a subpanel from my house to the shop. The house has alot of ungrounded wiring from the 1950’s.
I have 3 wires running from the saw (2 hot, 1 ground). How do I wire the receptacle for three wires from the saw? I get the hots, but which wire from the panel will connect to the “ground” from the saw? White or ground?
RolfP
Answers ( 4 )
Please briefly explain why you feel this answer should be reported.
So when I wire the receptacle, I use 2-wire (+ground), and in the panel I hook the ground to ground, the white and black to the two poles of the breaker, and this will not result in any free, dangerous electricity at the saw or elsewhere in the shop when I plug it in? Won’t the ground carry return current both to the panel and then to all my other “ground” wiring in shop from the panel there if one side or the other of the hot wires drops out?
Please briefly explain why you feel this answer should be reported.
Yes just like my video. Both white and black go to the “Two Pole” breaker. And the ground goes to the grounding bar of the panel.
Please briefly explain why you feel this answer should be reported.
The white “neutral” is a return path. Which you don’t need, so you would use the ground.
Please briefly explain why you feel this answer should be reported.
Perfect – Thank you very much.