Schneider Electric LGA36400U53x Circuit Breaker

Schneider Electric's Square D PowerPact L-frame LGA36400U53X is a 400 A, three-pole molded-case circuit breaker designed for high-current feeders in industrial power systems. It is rated for up to 600 V AC with an 18 kA interrupting capacity and uses I-Line plug-in mounting for easy panel integration, while the MicroLogic 5.3E electronic trip unit provides precise protection and trip coordination. The unit is 80% rated and features Energy 5.3E, delivering long-time, short-time and instantaneous protection characteristics to help prevent nuisance trips and equipment damage. As part of the PowerPact L-Frame family, LGA36400U53X is commonly used in main disconnects, feeders, and distribution panels in industrial environments where high-current protection and reliable, repeatable trips are required.