120 Volt 20 Amp Wiring Diagram. Only one of the prongs supplies power and it provides the expected 120 volts at 30 amps. This diagram illustrates wiring for a circuit breaker with a built-in ground fault circuit interrupter or gfci.
A 20 amp 120v duplex receptacle outlet like this should be installed in a circuit using 12 awg cable and a 20 amp circuit breaker. Check wiring diagram to confirm. A breaker panel box 15amp 20amp 30amp 50amp and gfci breakers.
A wiring diagram is a simplified traditional photographic representation of an electrical circuit.
This 20 amp 120 volt breaker is a form of gfci that can be installed at the circuit source. Directions for wiring 120 volt meter kit Connected as shown meter will correctly register 120 volt loads. Only one of the prongs supplies power and it provides the expected 120 volts at 30 amps. To ensure the warranty on a Siemens panel is not voided the use of Siemens breakers is required.