I ran 40 feet of 12 gauge, 3 conductor with ground, Romex to...

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Question by flanso
Submitted on 6/10/2004
Related FAQ: Electrical Wiring FAQ (Part 1 of 2)
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I ran 40 feet of 12 gauge, 3 conductor with ground, Romex to a 220 volt outlet for my Craftsman compressor from an existing sub-panel. I installed a 2 pole 20 amp breaker and get 120 volt readings from each leg of the outlet to neutral. But the compressor, which is rated at 9.8 amps on 220, does not run; I tried another breaker with the same results. If I temporarily "double lug" the new circuit onto the 60 amp breaker that already exists in the subpanel, the compressor work just fine. Why won't the circuit work with it own 20 amp breaker?

Answer by wc
Submitted on 2/9/2006
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check to see if you are getting 220 across the hot wires, you have to make sure you have the proper breaker, that picks up L1, L2, at your panel

Answer by Dave
Submitted on 7/4/2006
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Sounds to me like you have both 120v lines tied to the same leg. Do you have 240v across the lines?

Answer by chevyboy
Submitted on 12/29/2006
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Is this "2-pole" 20 amp breaker actually a "twin", wafer-type breaker? If that is the case, 220 volt is impossible to get out of it. 120 volt is all you will get.

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