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NF panels, why can they not use the 480V delta system?

Issue:
NF panels, why can they not use the 480V delta system?

Product Line:
Panel boards

Environment:
NF panel boards

Cause:
Application, Installation, Rating

Resolution:
The EDB branch breakers used for NF panels have a maximum single pole voltage of 277V. On a 480V delta system, a single pole would see 480V
which is more than the branch breakers are rated for.


CTA-ID : 2048806
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