Schneider Electric Square D QOT1520 Circuit Breaker

Schneider Electric Square D QOT1520 Tandem Miniature Circuit Breaker is a plug-in tandem breaker for QO load centers that bundles two circuits into the space of a single slot: a 15 A circuit and a 20 A circuit, both rated for 120/240 VAC. The unit carries a 10 kA interrupt rating and is UL Listed and CSA Certified, ensuring standard safety compliance. It uses pressure-plate terminals compatible with #12–#8 AWG aluminum and #14–#8 AWG copper conductors, enabling flexible field wiring. Designed for panels that explicitly list QOT tandem breakers, the QOT1520 is installed as a standard plug-in device in suitable slots and is part of the QO family’s tandem options. In practice, this breaker lets you add a second circuit without consuming a full additional slot, making it suitable for branch circuits in tight panel layouts where a mix of 15 A and 20 A circuits is needed, provided the panel's labeling allows tandem use.