GFCI 15 & 20 Amp

GFCI stands for Ground Fault Circuit Interrupter. It is an electrical device designed to protect people from electric shock hazards caused by ground faults. A ground fault occurs when there is an unintentional electrical path between a source of electrical current and a grounded surface, such as a person or a wet environment.

The purpose of a GFCI is to monitor the electrical current flowing through a circuit. It constantly compares the incoming and outgoing current and trips the circuit if there is an imbalance, typically as low as 5 milliamperes (mA). This small imbalance can indicate that current is flowing through an unintended path, such as through a person who may be experiencing an electrical shock.

GFCIs are typically installed in areas where there is a higher risk of electrical shock, such as bathrooms, kitchens, outdoor outlets, garages, and basements. They are commonly found in electrical outlets and circuit breakers. When a GFCI detects an imbalance in the electrical current, it quickly interrupts the flow of electricity by tripping the circuit, thereby preventing potential electric shock incidents.

In addition to their primary safety function, GFCIs also help protect against electrical fires caused by ground faults. By rapidly cutting off the current in the event of a ground fault, GFCIs reduce the risk of electrical arcs and overheating that can lead to fires.

It is important to periodically test GFCIs to ensure they are functioning properly. Most GFCIs have a "Test" and a "Reset" button. Pressing the "Test" button should cause the GFCI to trip and cut off power. Pressing the "Reset" button should restore power if the GFCI is working correctly.

In summary, GFCIs are electrical devices that protect against electric shock hazards caused by ground faults. They monitor electrical current flow and quickly interrupt power in the event of an imbalance, thereby preventing potential electrical shocks and reducing the risk of electrical fires.