Which type of circuit breaker is designed to prevent electrical fires?

AFCI breakers, or Arc Fault Circuit Interrupters, are specifically designed to enhance electrical safety and prevent electrical fires caused by arcing faults. Arcing can occur when there are loose or damaged wires, which can produce high temperatures and potentially ignite surrounding materials. The AFCI breaker continuously monitors the electrical circuit and can detect these dangerous arcing conditions much faster than conventional circuit breakers. When an arc is detected, the AFCI breaker instantly cuts off power to the circuit, significantly reducing the risk of fire.

This proactive approach to fire safety is why AFCI breakers are mandated in many residential electrical codes for certain areas of the home, such as bedrooms and living rooms, where the risk of electrical fires might be higher due to their usage. Other types of breakers, while important for overload protection and short circuit interruption, do not specifically target the arc conditions that AFCI breakers are designed to prevent.