Sub-Panel Number of Circuit Breakers

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north star

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I have an existing residence with a 200A service to it.....The owners have
built an addition onto the existing residence.....A local electrical contractor
has installed an exterior mounted sub-panel with some equipment OPD's,
...a water heater OPD and one circuit for a bedroom.....This one bedroom
circuit DOES have an AFCI rated breaker installed.....The total number of
"throws" in this sub-panel is 7 !.....A couple of double throws, ...and some
single throw breakers ( total number = 7 ).

QUESTION: Are the 7 total number of disconnects in this sub-panel
compliant with the NEC?......Please supply the applicable articles.
Thanks! :)

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As long as this is attached to the main structure where the service equipment is you can have as many sub-panels with as many circuits as you want in each sub-panel without a main breaker in them, the issue would be if the addition was calculated per 220.83.

Roger
 
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rogerpa,

Thanks for ' quickie ' reply!....As far as I know, the existing service is sized
large enough to accomodate the additional circuits & equipment.

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The "six throws" rule is all about making it possible to shut off all power to a building without having to spend too much time doing it. I suspect that you can kill all power to this residence with one throw of a main breaker in the main panel. That is all that is needed, and the configuration of the sub panel is not relevant. That said, if this building addition were instead a separate structure, and the sub panel were to be attached to that structure, then the "turn it off with no more than six throws" rule would come back into play. References 225.33 and 230.71.
 
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