12/3 and GFCI receptacle

J

JoeS36

Member
Location
nY
Occupation
Construction
Hey I been reading few different things about this shared neutral and am a little confused.

Currently being ran from panel is a 12/3 wire going to a box. In that box is the 12/3 Home run wire and 2-12/2 wires. the neutrals are all together. With a tailed neutral to a gfci outlet in that box The black off 12/3 goes to the gfci line side with that tailed neutral . in the load out on gfci is one of the 12/2 black /white going to other counter outlets.
The red on the 12/3 is tied into different 12/2 going out to the microwave recepticsl with black to the red and neutral connected together with others In box.
I’m pretty sure this is ok and up to code but before I close walls if it’s ran wrong I’d like to have someone come redo it.

Thanks in advance
 
ptonsparky said:
How are you protecting the circuit? You’re leaving out details. What code cycle are you under? Has your inspector signed off on it?
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It’s existing. Im re sheet rocking and insulating walls and was looking at wiring and traced it back to basement which is unfinished
 
JoeS36 said:
Hey I been reading few different things about this shared neutral and am a little confused.

Currently being ran from panel is a 12/3 wire going to a box. In that box is the 12/3 Home run wire and 2-12/2 wires. the neutrals are all together. With a tailed neutral to a gfci outlet in that box The black off 12/3 goes to the gfci line side with that tailed neutral . in the load out on gfci is one of the 12/2 black /white going to other counter outlets.
The red on the 12/3 is tied into different 12/2 going out to the microwave recepticsl with black to the red and neutral connected together with others In box.
I’m pretty sure this is ok and up to code but before I close walls if it’s ran wrong I’d like to have someone come redo it.

Thanks in advance
Click to expand...
What I have bolded is possibly a problem. Depends if you described what you have accurately. Load side conductors of GFCI's can not tie to any non protected conductors period, that will immediately trip the GFCI when energized.
 
kwired said:
What I have bolded is possibly a problem. Depends if you described what you have accurately. Load side conductors of GFCI's can not tie to any non protected conductors period, that will immediately trip the GFCI when energized.
Click to expand...
They are using the red from the 12-3 to splice to the black of the 12-2.
 
kwired said:
What I have bolded is possibly a problem. Depends if you described what you have accurately. Load side conductors of GFCI's can not tie to any non protected conductors period, that will immediately trip the GFCI when energized.
Click to expand...
The way I read it, that part has no connection to the GFCI. It’s the other leg of the MWBC continuing on to the microwave. Depending on where the microwave is located, lack of GFCI may or may not be OK.
 
Looks ok to me 12/3 into box. Black and white feed GFCI line side. 1/2 off load side does kitchen recpt. red from 12/3 power feeds microwave which may also require GFCI
 
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