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What are the torque requirements for QO circuit breakers' wire binding screws and clamp plates?

Issue:
Torque requirements for QO and QOB breakers' wire binding screws and clamp plates

Product Line:
Circuit Breakers

Resolution:
The following table shows the torque value requirements for the wire binding screws and clamp plates of QO and QOB circuit breakers:
QO breaker binding screw torque summary
TypeDescriptionTorque lb-in (N-m)
QO/QOB10 - 30 A, 1, 2, and 3 pole36 (4)
QO/QOB35 - 70 A, 1 and 2 pole and 40 - 60 A, 3 pole 45 (5)
QO/QOB-VH, QOH40 - 125 A, 2 pole50 (5.6)
QO/QOB-VH,40 - 100 A, 3 pole50 (5.6)
QO/QOB70 - 100 A, 3 pole50 (5.6)
QO/QOB-H40 - 100 A, 2 pole50 (5.6)
QO/QOB,80 - 125 A, 2 pole50 (5.6)
QO/QO-VH150 - 200 A, 2 pole250 (28.3)
QOB-VH150 A, 2 and 3 pole250 (28.3)
QO Tandem(Ex: QO2020, QOT1515...)25 (2.8)

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