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Can a main breaker be installed in a QONQ30LS400 or QONQ42LS400?

Issue:
Application

Product Line:
QO Load Center

Environment:
QO load centers sold and used in the United States

Cause:
Clarification
 
Resolution:
No, these load centers are considered "fixed mains" main lugs panels and are not convertible to main breaker. Consider using QONQ30MS400 or QONQ42MS400 for a main breaker application. For alternate main breaker ratings, consider using NQ panelboards.

 

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