Current setup is a 20A breaker that powers:
- Above counter: 2 gang box with:
- Left side: a switch powering over-sink light
- Right side: a switch for the garbage disposal
- Under sink: A hardwired garbage disposal
- Replace the garbage disposal switch with a 20A GFCI
- Install a 15A receptacle below sink (where I'll plug in a button air switch for a plug-in disposal + hot water dispenser)
Nothing wrong with this plan I hope?
I have questions about how to properly wire the GFCI, so that it (I think should) also protect the under-sink outlet.
As I look to install the GFCI, the instructions say:
DO NOT install the GFCI receptacle in an electrical box containing (a) more than four (4) wires (not including the grounding wires) or (b) cables with more than two (2) wires (not including the grounding wire)."
As you can see from the photos, I have 3 cables going into the box. All 3 cables have black/white/ground. Can this be installed and if so what is the correct wiring?
Please let me know if you need more information and I can edit this. In USA.