Technical FAQs

Ask a Question

If a Factory Assembled NQ panelboard has a 150A main breaker with a 225A rated bus, would the panel be rated at the trip rating or the bus rating?

Issue:
If a Factory Assembled NQ panelboard has a 150A main breaker with a 225A rated bus, would the panel be rated at the trip rating or the bus rating?

Product Line:
NQ panelboards.

Environment:
Products sold in the United States.

Cause:
Product features.

Resolution:
A Factory Assembled panel will be labeled and rated at the amperage level of the installed main breaker, regardless of what the bus rating might be. It is labeled this way for UL listing and labeling purposes.


CTA-ID : 2053055
Was this helpful?
What can we do to improve the information ?