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What is the part number for a 20A QO/QOB breaker that can break two hot wires and the neutral?

What is the part number for a QO breaker with switching neutral?

Product Line:
Miniature Molded Case Circuit Breaker

QO/QOB Breakers

The part number can be QO320SWN or QOB320SWN. For other QO-SWN breaker options see Digest 177 page 17.
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