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#51559 - 05/02/05 06:19 AM AFCI on multiwire circuits  
Steve Miller  Offline
Member
Joined: Aug 2001
Posts: 325
Loudoun Cty, VA
GFCIs don't work on multiwire circuits because of the shared neutral ... how about AFCIs? Anybody tried? I've learned things the hard way too many times. Figured I'd ask before screwing up.


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#51560 - 05/02/05 07:20 AM Re: AFCI on multiwire circuits  
resqcapt19  Offline
Member
Joined: Nov 2000
Posts: 2,148
IL
Same as GFCIs...you can get expensive 2 pole ones that work on mulitwire circuits.
Don


Don(resqcapt19)

#51561 - 05/02/05 09:44 PM Re: AFCI on multiwire circuits  
Larry Fine  Offline
Member
Joined: Feb 2005
Posts: 693
Richmond, VA
Just to cklarify, you can use a multi-wire circuit with GFCI protection as long as you split the neutral where the GFCI's are fed.

That is, by using receptacles, not breakers (unless they're breakers in a sub-panel, in which case, the 'multi-wire circuit' is actually a feeder.)

In other words, the 'load' terminals must have separated neutrals; they can share a single neutral at the 'line' terminals.

I've done this where a jetted bathtub required two GFCI receptacles, for motor(s) and heater. I ran a 12-3 rather than two 12-2's.


Larry Fine
Fine Electric Co.
fineelectricco.com


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