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-   -   GFCI in a 2 duplex gangbox and load out: (http://www.diychatroom.com/f18/gfci-2-duplex-gangbox-load-out-135504/)

DiegoJames 02-29-2012 08:54 PM

GFCI in a 2 duplex gangbox and load out:
 
Okay, I’m sure still a newbie, but I’ve successfully done with always careful study until I really understand what is going on: Regular toggle switches 2 in a double gangbox with through wire to other source; I’ve done a few three way switches; I’ve done numerous series of single duplex outlets on one continuing source line; One thing I have not done is a double gang box with two duplex outlet/plugs. And to top it off this one will be in a bathroom so one of the duplex plugs will be GFCI and I will want the other duplex in the box in protected "load" position and also with a load/out line to continue on through to the vanity light and switch.

After reading instructions, this is what I have come up with:


Line/source:
White goes to “Line” silver screw on GFCI duplex.
Black goes to “Line” gold screw on same GFCI duplex.
Ground will go to the Ground pigtail.

Load/out:
White is pigtailed with two other Whites: one to “Load” silver screw on GFCI duplex and one to White/silver screw on the regular duplex in the same gangbox.

Black is pigtailed with two other Blacks: one to “Load” gold screw on GFCI duplex and one to Black/gold screw on the regular duplex in the same gangbox.

The ground pigtail will have four wires: Line, Load, and jumps to ground screw on each duplex.

If this is correct my next question is box size which continues to be my weakest point of understanding through all of my wiring projects. Can this go in a 25 cubic in. “11/12” box?

(Hopefully this is well enough written to encourage an answer!)
Thanks!
DiegoJames

jbfan 02-29-2012 09:08 PM

I would not run the vanity light on the gfci, but your plan is right.
Remember that you can only have one wire under each screw.

DiegoJames 02-29-2012 09:40 PM

Not running vanity light on the GFCI: I'm assuming that would not be for any inherent danger in the wiring plan, but rather for practical safety like in having the vanity light remain on in the case of a hazard or emergency going on with the GFCI in case of shut down, and/or simply because the vanity light is not at hazard for getting wet, etc.? I could surely send the source first to the vanity and THEN to the GFCI.

Jim Port 03-01-2012 07:04 AM

Do you have two or three cables in the double box?

DiegoJames 03-01-2012 08:52 PM

GFCI double duplex box
 
I'm actually decided not to run the vanity light out of the double duplex box, so I'm only going to have one cable in and nothing going out, so there'll be plenty of space.

Julius793 03-01-2012 09:49 PM

Quote:

Originally Posted by jbfan
I would not run the vanity light on the gfci, but your plan is right.
Remember that you can only have one wire under each screw.

Most of the gfi's have two holes for two wires per screw.


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