Square D PowerPact LJL36400RU44X L-Frame 3P 400A Field-Interch Electronic 100%
600A Frame | 400A | 3P | 100kA@240V, 65kA@480V, 25kA@600V | Electronic Field-Interch 100% (MicroLogic 6.3A LSIG)
The Schneider Electric Square D PowerPact LJL36400RU44X is a L-Frame molded case circuit breaker rated at 400 amperes for 3-pole applications in commercial and industrial power distribution systems. This premium breaker delivers extra-high interrupting capacity rated at 100kA@240V, 65kA@480V, 25kA@600V, operating at 600V AC for reliable overcurrent protection in critical electrical infrastructure. The LJL36400RU44X features a MicroLogic 6.3A LSIG electronic trip unit providing adjustable long-time delay, short-time delay, instantaneous, and ground fault protection settings for precise overcurrent coordination. This advanced electronic trip technology enables optimized protection curves, selective coordination with upstream and downstream protective devices, and significantly enhanced system reliability. Configured for unit mount installation, the LJL36400RU44X utilizes lug (unit mount) connections with AL400L61K3/AL600LS52K3 terminations designed for reliable conductor termination. The unit accommodates (2) 2/0-500 kcmil Al/Cu conductors within compact overall dimensions of 10.24" H x 5.51" W x 5.67" D weighing ~25 lbs, optimizing installation density in electrical distribution equipment. Certified to UL 489, CSA, and IEC/EN 60947-2 international standards, the LJL36400RU44X ensures compliance across diverse global markets and jurisdictions. This breaker serves commercial and industrial power distribution, feeder protection, motor circuit applications, and switchgear installations requiring dependable L-Frame frame interrupting performance. The LJL36400RU44X exemplifies Schneider Electric's PowerPact platform engineering excellence, delivering consistent protection performance with robust construction designed for long service life in demanding environments.
Key Features
This PowerPact MCCB features Electronic Field-Interch 100% (MicroLogic 6.3A LSIG) trip protection rated 400A at 600V AC. Frame size: 600A. Interrupting capacity: 100kA@240V, 65kA@480V, 25kA@600V. Designed for reliable overcurrent protection in industrial and commercial power distribution systems.
Applications
Suitable for main distribution panels, motor control centers, switchboards, and feeder circuit protection in industrial facilities, data centers, and commercial buildings. Compliant with UL 489, CSA C22.2 No.5, IEC/EN 60947-2, NOM, CCC, CE.
