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Old 02-04-2012, 06:48 AM   #1
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Multiple circuits/one switchbox


I am doing a residential rewire and adding some 3 way switches. My setup has me with switches controlling fixtures on more than one circuit in the same switchboxes.
I have done some research and I have not found any indication that this is a code violation. I am aware I cannot connect the neutrals from different circuits.
My question is, how do you guys handle this when wiring a home? Any tips as far as flagging the situation? Do you tie the breakers?
Just want to maintain safety and good workmanship

Thanks!
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Old 02-04-2012, 08:59 AM   #2
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No special treatment is needed outside the box when wires from two different branch circuits (separate cables, separate neutrals) enter the same switch box, outlet box, or junciton box.

It is not necessary to tie the handles to the respective breakers.

Connect all ground wires (equipment grounding conductors) from all circuits together inside the box.
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Last edited by AllanJ; 02-04-2012 at 09:04 AM.
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