METHODS AND APPARATUS TO DISABLE A TRIP CIRCUIT DURING SELF TEST IN GROUND FAULT CIRCUIT INTERRUPTERS

A ground fault circuit interrupter (GFCI) having an automatic self-test feature is configured to disable a trip circuit therein during a self test, yet still allow the trip circuit to respond during the self test to detection of a large ground fault by tripping a main contact switch of the GFCI. The GFCI includes circuitry that overrides the disablement of the trip circuit during a self test in response to detection of a ground fault that exceeds a predetermined threshold. Methods of disabling a trip circuit of a GFCI during a self test while still allowing the trip circuit to respond during the self test to detection of a large ground fault are also provided, as are other aspects.