Afci

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  #1  
Old 01-19-13, 02:17 PM
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Afci

I am renevating an older house. it is wired with 14/3 going to the second floor, feeding two circuits in bedrooms. is there a way to install AFCI breakers on these two hot legs, with the one nuetral. i am assuming i have to run another wire, so each circuit has its own nuetral.
 
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Old 01-19-13, 05:09 PM
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You've been able to protect them with a 2-pole AFCI breaker for some time. That's not the preferred protection for multiwire branch circuits, though - two single-pole breakers with a handle tie, so that one doesn't trip the other but you have to switch both off to work on either one, is preferred.

That appears to have changed, though. Here's an Application Guideline from General Electric. Looks like it's from 2009.
 

Last edited by Nashkat1; 01-20-13 at 08:14 AM. Reason: Correct link
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Old 01-19-13, 09:44 PM
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There are very few two pole AFCI breakers available.
 
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