What is an AFCI breaker?

An arc-fault circuit interrupter breaker detects dangerous electrical arcs and cuts power almost instantly to prevent electrical fires. Arc faults occur when electricity jumps across a gap in a circuit, creating intense heat that can ignite insulation, wood framing, or other flammable materials nearby. This happens differently from typical overloads or short circuits, which standard breakers catch, so AFCI protection targets a specific fire hazard that older breakers miss.

The National Electrical Code (NEC) has steadily expanded AFCI requirements in new and renovated homes. Most bedrooms must have AFCI-protected outlets or breakers. Kitchen countertops, dining areas, living rooms, and other general-purpose circuits now require them as well. Bathrooms, laundry rooms, and utility areas typically need either AFCI or GFCI protection. Some jurisdictions and recent code cycles even require AFCI protection on most circuits throughout a home.

AFCI breakers install directly in your electrical panel in place of standard breakers, protecting an entire circuit, or you can use AFCI outlets that protect only the outlets downstream from them. They cost more than standard breakers but add a real layer of fire safety. If your Sanford home was built before AFCI became common, upgrading to electrical panel upgrades with AFCI breakers is one way to bring your wiring up to modern safety standards.