This article was posted 08/15/2012 and is most likely outdated.

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Applying 1-pole Combination AFCIs to Shared Neutral Circuits

Combination Arc Fault Circuit Interrupters
Application Guidelines
Applying 1-pole Combination AFCIs to Shared Neutral Circuits

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Until now, using a shared neutral (multiwire branch circuits) on arc fault protection circuits required the use of 2-pole AFCI breakers, since the AFCI circuitry uses a ground fault CT to help it detect arcs. But with GE’s newly developed combination AFCI technology, no ground fault CT is required, so shared neutral circuits can be used with two 1-pole AFCIs connected together with a handle tie.

Click here to view this Electrical Distribution publication from GE which explains these application guidelines and provides example diagrams.

 

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Comments

  • It's to ensure that all circuits with a common neutral disconect at the same time.

      August 16 2012, 8:00 am EDT
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