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    Can a customer use a QO type bolt-on branch breaker for use as a back fed main in a Three phase QO load center?

    Product Design Features

    Product Line:
    QO load centers

    Branch breakers


    QO Load centers, both single phase and three phase are ONLY designed to accept QO Plug-On Type branch breakers. So a Bolt-on type branch breaker CANNOT be installed into the QO load centers.

    NOTE: For a back-fed application in a QO load center (1-phase and 3-phase), a Plug-ON type branch breaker must be used. Also, the correct retaining kit part number MUST be used for compliance with the National Electrical Code (NEC).


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