Which type of circuit breaker offers an additional layer of safety against overloads and faults?

An arc-fault circuit interrupter (AFCI) is designed to provide enhanced safety by detecting arc faults, which are a specific type of electrical fault that can lead to fires. Unlike standard circuit breakers that primarily protect against overloads and short circuits, an AFCI can sense potentially dangerous arcing conditions that occur due to damaged wires or faulty connections. This additional layer of protection is crucial in modern electrical systems, particularly within living areas, as it can prevent ignition of fires caused by these undetected faults.

The presence of an AFCI can help ensure that electrical installations are safer, especially in residential settings where flammable materials are common. This makes it a vital component in electrical safety, particularly in new constructions or during remodels in places like bedrooms and living rooms where traditional breakers might not provide adequate protection against the unique risks posed by arc faults.