US Patent 10001526 Self-testing ground fault circuit interrupter

A circuit interrupter including a ground fault circuit interrupter circuit structured to detect a ground fault based on current flowing in line and neutral conductors of the circuit interrupter, a ground fault circuit interrupter monitor circuit structured to perform a self-test on the circuit interrupter to determine the functional status of the ground fault circuit interrupter, and a bridge circuit structured to harvest power from the line and neutral conductors and supply said harvested power to the ground fault circuit interrupter circuit and the ground fault circuit interrupter monitor circuit.