convert 4 prong 30 amp 220 to a 3 prong 20 amp 220


Hello, I have an air compressor that is a 220 20 amp 3 prong male plug. I have a generator that is a 220 30 amp 4 prong female.

I am trying to make an extension cord so I can use it outside, is there anyway I can do this. I have tried but not an expert on electrical.

Thank you

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bfb 1 year 1 Answer 443 views

Answer ( 1 )

  1. Chances are you don’t have a neutral for the compressor. So in that case you’ll just need to wire the two hots and the ground. Or substitute the ground for the neutral.

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