A Ground Fault Circuit Interrupter (GFCI) is a crucial device designed to protect people from electric shock by interrupting the power when a ground fault is detected, typically within milliseconds. It works by monitoring the balance of electrical current moving through a circuit and cutting off the electricity when imbalances occur. This is essential in preventing serious hazards that can lead to severe injuries or even fatalities. The main function of a GFCI is to swiftly cut off electrical power to prevent shock and fire risks associated with ground faults.
Mainly used in areas where electrical circuits may potentially come into contact with water, such as bathrooms, kitchens, and outdoor spaces, GFCIs are integral to modern electrical safety standards. Their characteristics include sensitivity to electrical imbalances and the capability to react rapidly to prevent electrocution. Manufacturers of GFCIs include well-known companies such as Eaton, Leviton, and Siemens, among others.