Application

How Does a GFCI Outlet Work?

2024-09-18 Read 173

A GFCI (Ground Fault Circuit Interrupter) outlet operates by constantly monitoring the flow of electricity into and out of the device. It compares the amount of current going to an appliance with the current returning from it. If a difference is detected, even as small as 4 to 5 milliamperes, the GFCI outlet will automatically trip and cut off power. This variation in current, known as a ground fault, suggests that electricity is flowing out of the intended circuit, which could potentially pose a danger, such as electric shock or fire risk. 


The utilization of GFCI outlets is essential for detecting ground faults, averting electrical shock, and minimizing the potential for electrical fires. These outlets are particularly vital in locations where water and electricity intersect, including bathrooms, kitchens, garages, and outdoor spaces.