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12-2 feeding 12/3 12-2 feeding 12/3
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Old 11-08-2008, 07:48 PM   #1
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Default 12-2 feeding 12/3
This came up in one situation on a remodel.
If you had a 12/2 NM home run feeding a GFCI, coming out of the box would be a 12/3 NM, one conductor which would be GFI protected and the other not, do you need to daisy chain the neutral around the GFCI to prevent losing power to the unprotected circuit if the GFCI tripped?
Basically, when a GFCI trips, does the neutral get tripped along with the ungrounded conductor?
I know that it sounds ignorant, but I would like to know for my own knowlege.
Thanks.
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Old 11-08-2008, 08:01 PM   #2
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NO WAY this will work. Yes, the LOAD hot AND neutral must remain isolated for other circuits.
You will need two 12/2's or a 12/2/2.
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Old 11-08-2008, 09:00 PM   #3
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This type of line-loading GFIs to protect downstream receps will not work:


This will:



Or use a 2pole GFI breaker:
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Old 11-09-2008, 08:31 PM   #4
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thank you for the info.
BTW, what program do you use to draw the diagram?
Rick
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Old 11-09-2008, 08:56 PM   #5
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Quote:
Originally Posted by subelect View Post
thank you for the info.
BTW, what program do you use to draw the diagram?
Rick
Paint / Paintbrush.
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