Branch circuits from unit A fed through unit B

J

joesmoeblue

Member
Quick question and can't seem to find the answer because I'm 60 miles from my code book. I'm upgrading a service for a duplex and have an issue with the branch circuit from one unit being fed through the other units panel. Is this a problem. Not sure if it's in 230 but thought I'd ask quick I'm not near my book. There's only maybe a dozen wires in a 1 inch emt but just not certain if they view this as a problem in terms of concerns with one unit paying another one's electrical bill with some minor or accidental adjustments. And yes this place is a code nightmare all around. Thanks
 
Take a look at 210.25, but read carefully what it is and is not saying.

Edit: Since you dont have your book, here is the section:

210.25 Branch Circuits in Buildings with More Than One Occupancy.

(A) Dwelling Unit Branch Circuits. Branch circuits in each dwelling unit shall supply only loads within that dwelling unitor loads associated only with that dwelling unit.

(B) Common Area Branch Circuits. Branch circuits installed for the purpose of lighting, central alarm, signal, communications, or other purposes for public or common areas of a two family dwelling, a multifamily dwelling, or a multi-occupancy building shall not be supplied from equipment that supplies an individual dwelling unit or tenant space.
 
electrofelon said:
I know this sounds kind of like Bill Clinton, but it depends on the definition of "in". If i have a branch circuit leaving unit A's panel, and supplying an recep in unit B, is that a violation? IS that branch circuit "in" unit A?
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From post #4, "shall supply only loads within that dwelling unit". If a cable passes through a dwelling unit it is not supply anything within that dwelling unit regardless of what Bill Clinton says. :giggle:
 
infinity said:
From post #4, "shall supply only loads within that dwelling unit". If a cable passes through a dwelling unit it is not supply anything within that dwelling unit regardless of what Bill Clinton says. :giggle:
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but it doesnt have to supply anything in the first unit to be a violation. IF it is supplying unit B, it cant be IN unit A. Here is the wording again:

Branch circuits in each dwelling unit shall supply only loads within that dwelling unit
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Is the branch circuit IN Unit A as it receives its supply there and passes thru A to get to B?
 
The OP asked if a branch circuit can go through "the panel" of another unit.

Maybe there's an electrical room, or they're in a basement....🤷

Here's what he wrote:
"...the branch circuit from one unit being fed through the other units panel."
 
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