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DubV
Explorer
Jun 19, 2015

NEMA 14-30R (not 14-30P) to TT-30R?

My garage currently has a 14-30R (not 14-30P) 125/250V receptacle. Is it possible to rewire this to a TT-30R 125V receptacle? I can't seem to find an adapter anywhere.
  • Easy enough. Inside the outlet box you should have four wires; black, red, white and bare (or green). Tape off the red wire and then attach black, white and bare/green to your TT-30R receptacle as indicated by its included instructions. Verify proper voltage with a tester or multimeter before connecting trailer.
  • Yes. Just put a wire nut on one of the hot connections to cap it off and wire the rest to the new outlet.