GFCI and 22.5 CU IN box

[jxofaltrds]

Is it code compliant to install 3 12-2 w/g or 3 14-2 w/g and a GFCI device in a 22.5 CU IN outlet? NO.




Do you 'loop' wires on GFCIs? I bet not. That would be 'real hilljack' work!

 

[infinity]

I really wonder if that is part of the listing of the device.

 

[iwire]

I really wonder if that is part of the listing of the device.

And if it is, which specific model(s) of GFCIs.

 

[jxofaltrds]

And if it is, which specific model(s) of GFCIs.

Go here and take your pick. I did not check every GFCI but more than one requires this.

http://www.leviton.com/OA_HTML/SectionDisplay.jsp?section=42316&minisite=10251

 

[jxofaltrds]

Now I will agree if this is in a two gang box this is stupid. I think they meant a single gang box.

So how do we interpret this?

 

[Little Bill]

Is it code compliant to install 3 12-2 w/g or 3 14-2 w/g and a GFCI device in a 22.5 CU IN outlet? NO.


View attachment 7101

Do you 'loop' wires on GFCIs? I bet not. That would be 'real hilljack' work!

As far as box fill, yes!

Why would looping wires (EGC) be any different for a GFCI than for a regular duplex?

 

[Dennis Alwon]

I questioned that years ago with my state inspector and we both think that the comment is their for the diy people who wouldn't know what to do when there were 3 cables. I actually thought it was for heat dissipation but who knows. I never have seen anyone called on it.

 

[jxofaltrds]

I questioned that years ago with my state inspector and we both think that the comment is their for the diy people who wouldn't know what to do when there were 3 cables. I actually thought it was for heat dissipation but who knows. I never have seen anyone called on it.

I agree heat. Never could figure out why you would figure a GFCI at 4 or 4.5 cubes the same as any other device.

PS If you can only have two 'wires' in a box why have the extra holes in the back of a GFCI? :slaphead:

 

[don_resqcapt19]

Now I will agree if this is in a two gang box this is stupid. I think they meant a single gang box.

So how do we interpret this?

We should interpret this like we should most information supplied by the manufacturer...it is only an recomendation. In my opinion, the only 110.3(B) instructions are those found in the White Book of the listing standard.

 

[readydave8]

Dennis is right, it says call a qualified electrician. If its me they call I'm putting that joker in.

 

[electricguy61]

My guess would be the instructions are for those that don't know which wires would be "loads" vs" line.