QO3305237

The QO3305237 is a 3-pole thermal-magnetic miniature circuit breaker from Schneider Electric’s Square D QO series, designed for overcurrent protection and switching on AC systems in residential, light commercial, and industrial applications. Rated for 30 at 240, it provides dependable branch-circuit protection for lighting, receptacle, and equipment circuits. Its plug-in mounting design installs directly into compatible QO load centers and panelboards, making it a straightforward fit for new installations or replacements. Electrically, the QO3305237 uses a thermal-magnetic trip mechanism with an over-center, trip-free toggle for quick make and quick break action. It carries an interrupting capacity of 10kA@240V at 120/240VAC, with a 5kA rating at 48VDC, and its VisiTrip indication shows at a glance when the breaker has tripped and interrupted the circuit. All three poles are protected in a single unit, so the QO3305237 suits three-phase branch circuits where a common, coordinated disconnect is needed. Mechanically, the QO3305237 is supplied with ring terminals, which provide a secure connection for wiring that requires ring-tongue terminations, and accepts 14 AWG to 8 AWG copper conductors. Its plug-in design features a plug-on neutral and a compact footprint for faster installation, and its molded fiberglass-filled thermoset case stands up to demanding service. UL listed and CSA certified, the QO3305237 is a dependable choice for new panel installations and maintenance replacements in existing QO load centers. Purchase the QO3305237 at Electrical.com, your reliable partner for industrial and commercial electrical products. Our selection includes trusted circuit breakers 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.