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Question: Where branch-circuit conductors pass through a panelboard and do not originate or terminate in that panelboard, is there any requirement for identifying where the overcurrent devices are loc

Posted By Keith Lofland, Sunday, January 01, 2012
Updated: Monday, February 04, 2013

Question

Where branch-circuit conductors pass through a panelboard and do not originate or terminate in that panelboard, is there any requirement for identifying where the overcurrent devices are located for these pass-through conductors? TG

Answer

In this instance, the panelboard is serving the function of a pull box for these pass-through conductors. A panelboard is permitted for this purpose if proper wire bending space is provided as per 408.55. Feed-through conductors are permitted in a cabinet that contains overcurrent devices (such as a panelboard) per 312.8. One of the conditions required by 312.8 in permitting this application is that a warning label is required to be applied to the enclosure that identifies the closest disconnecting means for any feed-through conductors. This is a new requirement for the 2011 NEC.
— Keith Lofland, CMP-9


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Tags:  Focus on the Code  January-February 2012 

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