I need to replace a regular 3 prong outlet to one of these for a tool. I have tried multiple arrangements but none turn the tool on. The tool needs 15 amps, I have a 20 amp outlet and 15 amp fuse. Yes I know the fuse will need replacing but in the fuse is not being overloaded/breakenter image description hereenter image description here

  • What size is the wire to the receptacle, and how long will the tool be left running for? Also, what is the tool in question, and are we talking about a branch circuit shared with other receptacles or a dedicated branch circuit solely for said tool? – ThreePhaseEel Apr 9 '17 at 17:59
  • This tool is an air compressor. The wire is a 14 Guage. Running for an hour on and off tour. It is a branch curcuit but nothing is running off of those branch outlets. – DIYguy Apr 9 '17 at 18:33
  • What's the nameplate rating on the air compressor? – ThreePhaseEel Apr 9 '17 at 18:46
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    This receptacle is a NEMA 6-20, which needs a 240VAC 20A circuit, you can't just swap out a 120VAC receptacle with one of these and expect it to work, and you may damage your 240VAC equipment by trying to run it at 120VAC. I believe your 14 gauge wire is not sufficient to run a 20A circuit, you'd need at least 12 gauge. Also, note that these wires are wrapped around the screw terminals the wrong way, they should be wrapped clockwise. – Johnny Apr 9 '17 at 18:57
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    Also, I believe your side-wiring is backward. Maybe it's not a problem, but I've always heard to have the wire wrap in the same direction as the screw turns when you tighten it. – Hari Ganti Apr 10 '17 at 20:54

Your compressor is not working, because you're connecting it to a 120 volt circuit. According to the nameplate on the equipment, you should be connecting it to a 240 volt 20 ampere circuit.

  • Update to everyone. I put the curcuit on a 20 amp breaker and the compressor did not turn. – DIYguy Apr 27 '17 at 20:41
  • @DIYguy 20 amp at 240 volts, or 120 volts? – Tester101 Apr 27 '17 at 23:34
  • Two pole breaker needed. I understand now. Then run 10-2 wire right? Connect two hot wires or one hot one neutral and one ground – DIYguy May 2 '17 at 15:48

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