What is the primary function of a Ground Fault Circuit Interrupter (GFCI)?

The primary function of a Ground Fault Circuit Interrupter (GFCI) is to act as a safety device that monitors electrical current. This device is designed to protect against electrical shocks by detecting imbalances in the electrical current flowing through a circuit. When it senses that there is a difference between the current entering and exiting, which can occur when electricity is leaking to the ground (such as through a person), the GFCI quickly interrupts the circuit, cutting off the electrical flow.

This functionality is particularly crucial in areas where moisture is present, like kitchens and bathrooms, where the risk of electric shock is heightened. GFCIs are essential for ensuring safety in environments prone to electrical hazards, making their understanding and proper implementation crucial in kitchen planning and renovation.