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Re: CQD answer published Friday, February 23, 2018 -System Combination AFCI Products
Hey Charlie, thanks for all you do for the industry. Regarding today’s question, article 210.12 allows for different installation methods for AFCI protected circuits to be utilized. The “system combination type” under 210.12(A)(4)d can be complied with utilizing “System Combination” type products that have been evaluated under UL Product Category “AWDT”. The category and approved products can be viewed thru UL’s ProductSpec website for evaluated products. You can view the following link for approved products:
Sincerely, Kevin S. Arnold, P.E.
Hey Kevin thank you very much for providing that information and for the kind words. It is great to know that listed system combination-type AFCI's for use with 210.12(A)(4)(d) are now available. The wording in productspec.ul states that the molded case circuit breaker and outlet branch circuit AFCI are packaged together and marked as a system-combination AFCI. A diagram and table show the protection provided.
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ABOUT CHARLIE: 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. Charlie was also a member of NECA’s Academy of Electrical Contracting. Charlie’s experienced team of industry experts keep the CQD dialogue and discussions active and informative in the spirit of the man himself, as he wanted.
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