GFCI Outlet Switch Wiring Diagrams

–Check local regulations for restrictions and permit requirements before beginning electrical work– The user of this information is responsible for following all applicable regulations and best practices when performing electrical work. If the user is unable to perform electrical work themselves, a qualified electrician should be consulted.

This page contains wiring diagrams for a ground fault circuit interrupter (gfci) with a built in switch. This device can be used to protect a garbage disposal and provide a gfci protected receptacle in a single gang outlet box. The switch can be included in the protected circuit or it can be used to control an unprotected light or other fixture.

Wiring Ground Fault Circuit Interrupter Switch

gfci wiring switch

This diagram illustrates the wiring for a Cooper gfci/switch combo device wired to protect a garbage disposal. With this arrangement a receptacle, switch and disposal are protected with the ground fault breaker built into the device.

Wiring Ground Fault Interrupter and Light Switch

gfci wiring without switch

This ground fault circuit interrupter wiring diagram of the same device leaves the switch out of the protected circuit. With this arrangement the receptacle is protected but the switch remains outside the circuit. This arrangement can be used to control a light or other device where the extra protection of a gfci is not necessary.

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–In these wiring diagrams, the brass colored terminals represent the hot side of the device and the silver colored terminals represent the neutral side. Ground wires and terminals are in green, including a green dot representing the builtin grounding terminal found in most metal outlet boxes.

–By code, the number of conductors allowed in a box are limited depending on box size. Conductors include wires, devices like switches and receptacles, and some other metal parts. Check here to calculate the number of conductors allowed in a box before adding new wiring, etc.