Can I use a 20 amp GFCI on a 20 amp breaker?
Subsequently, one may also ask, can I put a 20 amp GFCI on a 20 amp circuit?
The amperage of the outlet must never exceed the amperage of the circuit. According to National Electrical Code, only a 15-amp or 20-amp electrical receptacle can be installed to a 20-amp circuit. However, a 20-amp GFCI outlet may not be installed to a 15-amp circuit.
Secondly, can you use a 15a GFCI outlet on a 20a circuit?
A 15 amp GFCI receptacle may be supplied power from a 20 amp circuit. Other that gratuitously degrading the performance of the circuit if only one 15 amp receptacle is used in the circuit, there is no reason why it cannot be done. In fact, most receptacles come in pairs with a potential of up to 30 amps.
Use a 15-amp breaker with 14-gauge wire and a 20-amp breaker with 12-gauge wire.
- Attach the curly white wire from the breaker to the neutral bus.
- Connect the white circuit wire to the neutral breaker terminal and the black circuit wire to the hot breaker terminal.