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Can you put tandem breakers (QO2020) in a HQO306?

Issue: Can you put tandem breakers (QO2020) in a HQO306?

Product Line: I-line Accessory

Resolution: Tandem breakers are not UL Listed for panelboards, only for single phase QO load centers. Therefore, tandem breakers cannot be mounted in HQO306.

Schneider Electric USA

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