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Are I Line and NF panelboards rated for use at 400Hz

Issue:
Are I Line and NF panelboards rated for use at 400Hz

Product Line:
I
Line / NF Panelboards

Environment:
Application

Cause:
Design Clarification

Resolution:
I line panelboard and NF Panelboards are rated for use at 400hz. Rerating of breakers due to the higher frequency can be calculated with attached Data Bulletin


 
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