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What is the difference between the QO/QOB and QO-H/QOB-H circuit breakers?
Issue:
What is the difference between the QOB and QOB-H Circuit breaker?

Product Line:
Circuit Breaker

Resolution:
The QO and QOB are rated 120/240 Vac, which means the line to ground voltage cannot exceed 120 Vac. The QO-H and QOB-H is rated 240 Vac, which means the line to ground voltage can be as high as 240 Vac.

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