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lidlbit
May 2, 2008, 07:08 AM
Hello, I have an existing 12/3 NMB in a jbox in the kitchen. Can I use one circuit for a GFCI Countertop circuit and one circuit for a dedicated microwave circuit that does not need GFI protection and share the neutral? Thank you!

stanfortyman
May 2, 2008, 11:03 AM
Yes you can.
At the first box you will need to split off to two separate 12/2 cables.
It gets a bit trickier if you want to load out to other receptacles from the GFI.