Schneider Electric SE Q4L3300 Circuit Breaker

Schneider Electric's Square D Q4L3300 molded case circuit breaker is a 3-pole, 300-amp unit designed for 240-volt three-phase power distribution in commercial and industrial panels, part of the Q4L family built around the compact Q-frame for reliable overcurrent protection. This thermal-magnetic MCCB uses line/load lug terminals and is configured for unit-mount installation, delivering a 25 kA interrupting rating at 240 VAC; the Q4L3300's rugged construction supports feeders and branch circuits in mid-size power distributions. Common applications include panelboard feeders, machine controls, and service entrances in 3-phase 240V systems, where the Q4L3300 helps prevent damage from short circuits while fitting alongside other Square D/Schneider Electric Q-frame breakers.