Combination Arc-fault Circuit Interrupters
Square D combination arc-fault circuit interrupters (AFCIs) are the first commercially available products designed to comply with the requirements of the National Electrical Code® (NEC®) for combination AFCI protection. Combination AFCI circuit breakers have the ability to sense and respond to a broader range of arcing incidents, providing enhanced protection against electrical fires for homes and families.
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UL Affirms AFCI Test Button As Only Method to Test AFCI Circuit Breaker
Underwriters Laboratories (UL) recently issued a concise letter explaining that AFCI indicators do not test AFCI circuit breakers.

View UL letter.

Welcome to Residential
Today, millions of homeowners rely on Square D products to distribute electrical power throughout their homes. They also look to Square D for the latest innovations in residential structured wiring systems that allow them to manage their home's video, audio and data systems. Our product lines continue to set standards in the residential construction industry; including our QO^® and Homeline^® load centers and circuit breakers, Arc-D-tect™ arc fault circuit interrupters, the Surgebreaker^® Plus Multi-Path Surge Protector and Multi-Link structured wiring system. Whether for single or multi-family residences, new construction or remodel applications, look to the Square D brand for the best in residential products.


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