What type of device is typically used to prevent arc faults in circuits?

Arc-Fault Circuit Interrupters (AFCIs) are specifically designed to detect and prevent electrical arc faults, which can lead to electrical fires. These devices monitor the electrical current and identify unintended arcs that occur due to damaged wiring, loose connections, or other issues in an electrical circuit. When an arc fault is detected, the AFCI interrupts the circuit, effectively cutting off the power and minimizing the risk of a fire.

This particular function distinguishes AFCIs from other types of devices that may be used in electrical systems. For instance, while a circuit breaker protects against overcurrent conditions, including overloads and short circuits, it does not specifically target arc faults. A transformer is utilized to change the voltage of an electrical supply and does not provide fault protection. A surge protector mitigates voltage spikes but is not designed to address arcing conditions within the wiring.

In summary, the primary role of an Arc-Fault Circuit Interrupter is crucial in enhancing electrical safety by directly preventing potential fire hazards associated with arc faults.