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Can ANY Of the 3-Phase OEM mounting bases be converted to a Main Breaker (for example the QON342L225 or QON320L125)?

Product design Features

Product Line:
QO OEM Mounting Bases

Conversion to main breaker


No, the 3-Phase Main Lug OEM Mounting Bases cannot be field converted to a Main Breaker OEM Mounting Base. A main breaker would have to be incorporated into the OEM`s equipment design. The final acceptance of this component is dependent upon its installation and use in complete equipment submitted to Underwriters Laboratories, Inc., by the OEM.

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