QOUR240

The QOUR240 is a Square D QOU miniature molded case circuit breaker rated for 40 amps at 240 with 2 poles, designed for overcurrent protection and switching in residential, commercial, and OEM applications. With a breaking capacity of 10kA@240V, it can safely interrupt the fault currents found on typical branch circuits. It is a unit mount breaker, so it installs in control panels, custom enclosures, and on DIN rail rather than in a load center. The QOUR240 uses a thermal-magnetic trip that provides time-delayed and instantaneous protection. The thermal element responds to sustained overloads, while the magnetic element trips instantly on a short circuit, so the breaker can clear a fault quickly and still tolerate the brief surges that equipment draws at startup. Square D?s Visi-Trip indicator gives a clear visual signal that the breaker has tripped, which makes troubleshooting faster, and the breaker provides a means to manually open the circuit. Mechanically, the QOUR240 has field-reversible lugs, which allow flexible installation to suit different wiring orientations and panel layouts. It accepts copper or aluminum wire from 14 to 2 AWG and can be DIN rail mounted, surface mounted, or flush mounted using mounting feet. QOU breakers are HACR rated and UL listed to UL 489, with CSA and NOM/ANCE certification as well. Before ordering, it is worth confirming that the breaker?s rating and unit mount style match your equipment. This makes the QOUR240 a practical choice for panel builders and electricians who need a compact 2-pole breaker with flexible lug orientation. Purchase the QOUR240 at Electrical.com, your reliable partner for industrial and commercial electrical products. Our selection includes trusted circuit breakers, panelboard components, and electrical products from manufacturers like Square D, Schneider Electric, Siemens, Eaton, and Cutler-Hammer, backed by a knowledgeable sales team ready to assist with technical questions, product selection, and support.