You would then use a 20-amp circuit breaker to protect the wires on this circuit. Advertisement. There are quite a few different circuit breakers.

I recently an email from someone wanting to know why their circuit breaker has a lock on it, preventing the breaker from being turned off, or tripping. By Reuben Saltzman June 23, 2015 at 6:33PM ...

Appropriate for a two-pole 20-amp breaker or a single-pole 30-amp breaker. 8-gauge or 6-gauge wire Used for 40-, 50- and 60-amp two-pole breakers; large appliances.