Schneider Electric's Square D LA36400 is a 400 A, three-pole molded-case circuit breaker rated for 600 V AC, with a 22 kA interrupt rating. This I-Line, thermal-magnetic MCCB (250 V DC) belongs to the LA frame family and is designed to protect three-phase feeders in distribution panels and industrial electrical systems. It enables three-phase protection in commercial and light-industrial installations where overloads and short circuits must be interrupted promptly.
