multiwire branch circuts

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domnic

Senior Member
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Electrical Contractor
ON a 208 v 4 wire if i use two hots and a neutral how many CCC do i have? ON A 240 V SINGLE phase two hots one neutral how many CCC? (no harmonics)
 
Don't forget in the 2008 NEC 210.4 (B) every multiwire branch circuit must now have either a multipole breaker or handle tie to disconnect all ungrounded conductors simultaneously. The option to this of course is to provide a neutral conductor for each hot. At this point, every wire is considered a CCC so watch 310.15(B)(2)(a).
 
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