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What is the meaning of suffix 1201 on a circuit breaker?

Product Line:
Circuit Breakers

Available on QO, QOB and QOU circuit breakers, the 1201 suffix indicates that the breaker has a 1B (normally closed) Auxiliary Contact.

Note that larger frame circuit breakers use suffix 1212, which has a 1A1B normally open/normally closed Auxiliary Contact.
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