Ground Fault Current Interrupter

Ground Fault Current Interrupter

Another common type of outlet is called the Ground Fault Current Interrupter or GFCI. This is sometimes referred to as a GFI outlet as well. These plugs are identified by the “Test” and “Reset” buttons on their face.

The GFCI is used to quickly stop power from flowing to a circuit when a ground fault is detected. Many people believe that the GFCI operates just like a circuit breaker, but there are some slight differences. A circuit breaker will “break” the circuit when an overcurrent or a short circuit is detected. A GFCI, on the other hand, will interrupt power if a ground fault is detected. The outlet is constantly monitoring for an imbalance between the current flowing into a circuit versus the current returning. This can happen as a result of water ingress. This is why GFCI outlets are seen in places where water is found in close proximity to electrical outlets, like bathrooms and kitchens!