Technical FAQs

Ask a Question

Will a 225a/3p branch breaker fit into a 3 phase Nema 3R ,NQ panel with a 400A main breaker?

Issue:
Will a 225a/3p branch breaker fit into a  3 phase Nema 3R ,NQ  panel  with a 400A main breaker?

Product Line:
Panelboards.

Environment:
Products sold in the United States.

Cause:
Product features.

Resolution:
No sub-feed breakers can be used in this panel due to heat rise issues . A 150a/3p breaker is the largest branch that can fit .


 
Was this helpful?
What can we do to improve the information ?