What is the function of an arc fault circuit interrupter (AFCI)?

An arc fault circuit interrupter (AFCI) is specifically designed to detect and prevent electrical arcs, which are unintended discharges of electricity that can occur due to damaged wiring, loose connections, or other faults. These arcs generate high temperatures and can ignite surrounding materials, creating a significant fire hazard. The AFCI improves safety by continuously monitoring the electrical circuit for these dangerous arc conditions. When an arc is detected, the AFCI quickly interrupts the circuit, reducing the risk of fire and providing a crucial layer of protection in residential and commercial electrical systems. This functionality is essential for preventing potential electrical fires and enhancing overall electrical safety within buildings.