Schneider Electric QOU240U Molded Case Circuit Breaker

Schneider Electric’s QOU240U is a unit-mount, two-pole molded‑case circuit breaker rated for 40 A at 120/240 V AC, designed for residential and light commercial distribution panels. The QOU240U combines overload protection and short‑circuit interruption with a thermal‑magnetic trip mechanism, and it carries a 10 kA interrupting rating at 240 V, enabling it to clear fault currents typical in divider panels and feeders. As part of the QOU family, this 40 A device installs in standard unit‑mount enclosures and is intended for use where robust, reliable circuit protection is required for 120/240 V circuits. In practice, it’s commonly employed to protect feeders and branch circuits in home service panels and small business panels, offering a compact 2‑pole form factor that fits alongside other QO/QOU devices in Schneider Electric’s lineup. The QOU240U’s combination of a thermal‑magnetic trip and its 2P, 40 A, 120/240 V AC specification makes it a precise match for protecting circuits around kitchens, lighting runs, outlets, and other general‑purpose loads in residential and light commercial installations.