What is a GFCI?

Ground-Fault Circuit Interrupters (GFCIs) by Nick Gromicko, CMI® and Ethan Ward What is a GFCI? A ground-fault circuit interrupter, or GFCI, is a device used in electrical wiring to disconnect a circuit when unbalanced current is detected between an energized conductor and a neutral return conductor. Such an imbalance is sometimes caused by current “leaking”

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