BR 2-20 Amp Single Pole Tandem Non-CTL Circuit BreakerThe primary role of a circuit breaker is to protect the wire from overheating due to overload and fault currents caused by a short circuit. This particular 2 20 Amp 1 in. plug on circuit breaker trips to the center position and must be turned off and on again. It is designed for use in type BR load centers and has an interrupt rating of 10 kAIC. The voltage rating is 120 240 Volt and it can accommodate wire sizes from #14 4 AWG Cu Al at temperatures