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-   -   Sub cabinet lighting (http://www.diychatroom.com/f18/sub-cabinet-lighting-39695/)

ex-Khobar Andy 03-05-2009 11:55 AM

Sub cabinet lighting
 
I am trying to install some sub cabinet (low voltage) lights in my kitchen. I want them on the same switch as a regular ceiling (120V) light. The switch for this light is conveniently close to the cabinet and I can fish a wire into there from above to feed my transformer.

The switch is in a double box with a duplex which is on a different circuit to the ceiling light. I have to switch off two basement breakers to make the whole double box dead. Two questions (1) is there any code reason why I cannot put the live feed to my transformer through the same switch (in other words just take it from the bottom of the switch); and (2) does the white from the transformer have to go back to the ceiling light for a return or can I just grab another white from the box (duplex side) even though that is on another circuit?

Bob Mariani 03-05-2009 12:25 PM

Both the neutral and the hot conductors should derive from the same breaker.

theatretch85 03-05-2009 07:48 PM

NEC 300.3 All conductors of the same circuit, including grounding and bonding conductors, shall be contained in the same raceway, cable, or trench.

In other words, you cannot use a hot conductor from one circuit and a neutral from another. If these two circuits are a MWBC (Multi Wire Branch Circuit) then it wouldn't be a problem. Check you panel and see if these two breakers run through the same cable as they exit the panel, one breaker should have a black wire connected to it and the other should have a red wire.


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