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What is the maximum size sub feed breaker for a 400A NQ NEMA 1 Panel ?
Issue:
What is the maximum size sub feed breaker for a 400A, NQ NEMA 1 Panel?

Product Line:
Panelboards

Environment:
NQ panelboards

Cause:
Sub feed breaker sizing for an NQ, 400A panel.

Resolution:
The maximum size sub feed breaker for an NQ, 400A NEMA 1 panel is (2)  3 pole 225A breakers

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