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What is the maximum QO or QOB branch breaker (not sub-feed breaker) that can be installed in an NQ panelboard?

Issue:  
What is the highest ampacity QO or QOB branch breaker (not sub-feed breaker) that can be installed in an NQ panelboard?

Product Line:  
Branch breakers for distribution panelboards.

Environment:  
NQ panelboards sold in the United States.

Cause:  
Product features.

Resolution:  
The maximum QO branch breaker that can be installed in an NQ panel is a 2-pole 125Amp. The maximum QOB branch breaker that can be installed in an NQ panel is a 2 or 3 Pole, 150Amp.
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