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How is the QO120HM and QO115HM different from the QO120 and QO115?

Product Line:
Circuit Breakers
QO style

Electrical Distribution Equipment

The HM stands for High Magnetic. The QO- HM breakers are designed to withstand higher inrush currents than the standard Quick Open QO breaker.
They are typically used on microwave, air conditioning, and other circuits subject to high inrush currents.
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