Schneider Electric QO3201021 Three Pole Circuit Breaker

Schneider Electric's QO3201021 is a 20A, three-pole molded‑case circuit breaker in the Square D QO family, designed for 240V AC systems. It provides overcurrent protection for three hot conductors with a 10 kA interrupting capacity (AIC) and is intended for plug‑in installation in compatible QO panelboards. As part of the QO line, the device employs thermal‑magnetic trip technology to respond to overloads and short circuits, and it is UL-listed for safety compliance in US electrical distribution. The QO3201021 model is a standard 3‑pole configuration compatible with other QO series breakers, enabling coordinated protection across a panel. Typical applications include three‑phase loads in commercial or light industrial distributions, such as motor‑driven equipment and HVAC components, where reliable protection at 240V is required. This unit is designed for use in QO distribution systems, offering a compact, plug‑in solution that fits common QO load centers and can be paired with other QO devices for a complete protection scheme.