What is a Ground Fault Circuit Interrupter?
GFCI for short, some refer to as GFI. It's that special plug you find in your bathroom, kitchen, garage and anywhere else that is considered a wet location. Contrary to what some may think, they do not protect your electrical equipment, fuses and circuit breakers do. GFCIs are there to protect personnel. The circuitry inside compares the current coming from the ungrounded conductor to the grounding conductor. If the current is off by a few milliamps, it trips. This is normal if there is a ground fault so that you don't get shocked, or electrocuted. Think of it as a safety measure against a toaster in the bathtub, if you're ever trapped in an 80s horror movie.