HOW GROUND FAULT CIRCUIT INTERRUPTERS (GFCIs) KEEP YOU SAFE
The ground fault circuit interrupter (GFCI) protects against potential electrical shock caused by a faulty appliance or a worn cord. It senses small changes in the current flow and can shut off power in as little as 1/40th of a second. GFCIs can be circuit breakers and protect the circuit from the panel. Often, however, they are receptacles.