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Office Furnishings (Systems Furniture) NEC 605

Office Furnishings (Systems Furniture) NEC 605

Office Furnishings (Systems Furniture) NEC 605

(OP)
The NEC section 605.6 & 605.7 now requires multiwire branch circuits supplying the partition to be provided with a means to simultaneously disconnectall ungrounded conductors.  This seems simple enough with 3 circuit furniture, just use a 3 pole breaker.  But many manufacturers offer 4 circuit furniture and the other day I saw an offer for 6 circuit furniture.  How should we deal with this?  There are no 4 pole 208Y/120 volt circuit breakers that I know of (or 6 pole for that matter).  What is anybody else doing?

RE: Office Furnishings (Systems Furniture) NEC 605

The code sections in question do not require that a single device disconnect all of the ungrounded conductors that serve the patition.  They only require that all of the ungrounded conductors of each multiwire branch circuit have a means of simultaneous disconnect.  Also note that this section does not require the use of multipole breakers.  Handle ties would be permitted and may be a better choice than a common trip breaker.
Don

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