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Friday, September 16, 2022

Question:

Hello CQD, which branch circuits are required to have Arc Fault Circuit Interrupter type circuit breakers in a dwelling unit? Thanks, Eric Williams
A

Answer:

Eric,

Thanks for the question. Section 210.11(A) of the 2017 NEC provides the requirements for Arc Fault Circuit Interupters (AFCIs) in dwelling units. This Code Section requires AFCI protection on all 120 Volt, single-phase, 15- and 20-ampere branch circuits supplying outlets or devices (as defined in Article 100) installed in dwelling unit Kitchens, Family Rooms, Closets, Hallways, Laundry Areas, or similar areas. The method for providing AFCI protection is not limited to just circuit breakers. Section 210.11(A) (1)-(6) lists the various methods permitted for providing the required AFCI protection. As always, it is important to consult with your local AHJ, as they may have local rules that define "similar areas". 

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CHARLIE TROUT: Charles M. Trout, better known as Charlie, was a nationally known NEC® expert and author. He served on several NEC® technical committees and is past chairman of CMP-12. In 2006 Charlie was awarded the prestigious Coggeshall Award for outstanding contributions to the electrical contracting industry, codes and standards development, and technical training. Even though Charlie passed away in October of 2015, his work continues in spirit. NECA continues to maintain this question forum for its many subscribers in memory and recognition of all his significant contributions to making the NEC what it is today.

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