The GE 20 amp Double Pole Ground Fault Circuit Breaker with self-test has a tin plated copper stab to create a reliable, permanent and corrosion resistant connection. The self-test functionality is a UL requirement on all GFCI devices commencing in June 2015. This variant of the GFCI ensures its ground circuitry is functioning properly by automatically running diagnostic testing on a periodic basis. Should a problem be detected, the circuit breaker will trip and will need to be replaced.
Unit provides protection against overloads, short circuits and ground faults
Detects very low levels of electrical current leakage (ground faults) and acts quickly to shut off power, preventing serious shock