Determining the Cause of AFCI Tripping

This article was posted 07/28/2010 and is most likely outdated.

Topic - Safety
Subject - Determining the Cause of AFCI Tripping

28, 2010
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Determining the Cause of AFCI Tripping

When an AFCI trips, the cause of the trip must be determined before placing the circuit back into service.

Schneider Electric has posted a Data Bulletin on their website that outlines several of the most common causes of AFCI tripping. Written in December 2007, it does not cover all possible causes that can occur, but is one of the more comprehensive troubleshooting guides out there.

Click here or on the image to read or download the document (439.3 Kb)

Visit the Schneider Electric website.

Thanks to Ed Lethert for letting us know about this important document!

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Comments

I have run into AFCI tripping due to operation of capacitor banks on the utility system. The AFCI units were sensitive to the transients created when energizing the cap banks. Brought the issue back to the manufacturer and found out it was a design issue and he supplied replacements to all the homeowners.

greg t

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