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What is used to install a QOB breaker in an NQ panel interior?

Issue:
For QOB breakers in NQ interiors is the bolted connection made to a pre-tapped hole or are self tapping screws used?

Product Line:
Panelboards

Environment:
Products sold in the United States.

Cause:
Product features.

Resolution:
Bolt-on branch breakers will bolt into pre-tapped threads.
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