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I have a single GFCI receptacle under my kitchen sink, and I want to power one end with constant power for the dishwasher and the other end with the switch leg from a switch on the backsplash for the disposal. Can this be done? I don't see the normal tab you can break on regular receptacles to do that on the GFCI.

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    You want to make half of a GFCI receptacle switched. Is that correct? – Harper Aug 23 '17 at 23:14
  • What is this GFCI fed from? A kitchen SABC, a lighting circuit, or a dedicated branch circuit? – ThreePhaseEel Aug 23 '17 at 23:15
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    Also, are you a person who believes firmly that a GFCI is a type of receptacle? Or do you believe a GFCI is a protection device that comes in many forms, and one of them has a couple convenience outlets, and all of them can protect downline loads? I'm not here to challenge anyone's beliefs but if you believe the latter, options open up. – Harper Aug 23 '17 at 23:17
  • I'm going to assume what this is: You have a switch, it powers a GFCI, the GFCI has a garbage disposal power feed in it (either plugged in, or wired in) and you have two outlets? Just an FYI and I may be wrong, I believe if a dishwasher is permanently mounted, it is supposed to be hard wired. I also believe it is supposed to be on it's own circuit. hopefully someone up to speed on code will comment. But if your goal is to have both appliances GFCI'd, I would add romex to the switch box/outlet, and drive the GFCI unswitched, route the disposal to the switch. – noybman Aug 24 '17 at 1:54
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You cannot split a GFCI receptacle, however, a GFCI receptacle is not the only way to provide GFCI protection to a circuit.

GFCI Circuit Breaker

One option, would be to provide GFCI protection to the entire circuit by installing a GFCI circuit breaker. Install a 20 ampere GFCI circuit breaker, and run 12 AWG copper conductors to the receptacle location. Then you'll simply wire a standard receptacle, in a half switched configuration.

Blank Face GFCI Device

Another option, is to use a blank face (dead front) GFCI device to provide protection.

  • Install a double wide box at the receptacle location.
  • Connect the wires feeding into the box to the LINE terminals on the GFCI device.
  • Use the LOAD terminals on the device to feed a standard receptacle, wired in a half switched configuration.

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