Wiring Diagrams for GFCI Outlets - Do-it-yourself-help This diagram illustrates the wiring for a circuit with 2 gfci receptacles followed by a light and switch. By connecting the switch to the load terminals on the last gfci, the switch and light are protected against ground faults as well. This gfci wiring method may be found in a bathroom or kitchen where the switch may be near a water source. Electrical Wiring Devices Instruction Sheets Electrical Wiring Devices Instruction Sheets. Color Change Kits (IPKIT-NR) 15 AMP AFCI Tamper-Resistant Duplex (AFTR1) gfci diagram | Diagram Wiring diagram of a gfci to protect multiple duplex receptacles how to wire a gfci outlet with 3 wires breaker 20 amp not resetting circuit vs receptacle the current flow through primary and secondary windings of t top diagram will either be 0 if there is no bonding and false positive tests on gfci ct wiring diagram switch 5.