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Discussion Starter · #1 ·
I need to add afci breakers to make the house up to code. The problem I have is they ran 14-3 wire to share a circuit to two different rooms. So the square d afci breakers won't work. Do I have to change out the box to a company that makes afci breakers that work with 14-3 wire. Any help would be much appreciated. Ps I'm not a electrician and don't plan on doing it so my terms may be not all right.
 

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Discussion Starter · #4 ·
It's a two story house and the exterior walls are spray foamed with closed the only option would be to use a interior wall and go up in attic and around. Didn't know of that was my only options.
 

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The question, as always, is "What does your electrician say?"

Before rewiring the branches or switching the main box, I'd probably ask my electrician if he could put in a small subpanel for just the shared neutral circuits, with the Siemens two-pole AFCIs in the subpanel
 

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Head Grunt
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I would recommend running a new circuit to one bed room and cap off the line and neutral in the 1st box that feeds that particular room. Not sure how replacing the fuse/breaker panel will take care of you shared neutral problem? If it is space you lack in a breaker panel then use a piggy back breaker or you can do a load calc for those two circuits and put both lines on the AFCI breaker.
 

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..... Not sure how replacing the fuse/breaker panel will take care of you shared neutral problem? .......
Some manufacturers make 2-pole AFCIs.
 

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Head Grunt
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Thanks for that 480, to be honest never seen one. I even checked my suppliers book and there is not one even listed by any manufacturer. Must not be a common use item but i can see where it could be useful.
 

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