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What does suffix 312 indicate on a QO, QOB, QYU, or QOU breaker?

Product Line:
Circuit Breakers

Resolution:
The 312 suffix indicates that it is magnetically calibrated to hold 13 times the handle rating for 1 cycle.

Released for: Schneider Electric USA
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Range:
QO(B) Circuit Breakers
QOU Unit Mount Circuit Breakers
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Range:
QO(B) Circuit Breakers
QOU Unit Mount Circuit Breakers
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