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QO Tandem Circuit Breakers in an NQ Panelboard

Issue:
Can QO tandem circuit breakers be mounted in an NQ panelboard:

Product Line:
NQ Panelboards

Environment:
Installation, selection

Cause:
Can a tandem breaker be installed in an NQ panelboard to increase the number of available circuits?

Resolution:
The QO tandem breakers are not UL listed or tested for use in panelboards.  They are only for installation in specific, residential QO load centers. 
Use of them in a panelboard violates UL and can result in loss of warranty.


CTA-ID : 2039812
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