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What is the box extension part number for the MH Panelboard boxes ?

Issue:
What is the box extension part number for the MH Panelboard boxes ?

Product Line:
NQ/NF Panelboards

Environment:
Appllication

Cause:
Change

Resolution:
The NQ and NF Box extension part numbers start with WW** suffix and ends in the amount of inches needed for extension. Range of extensions start at 4" and go up to 60" in height . They come with a Mono flat door and are used for wire routing and conduit . An example part number would be WW4 for 4" , WW60 for 60 " height extension etc
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