Square D PowerPact LJL36400CU31X L-Frame 3P 400A Electronic MCCB 100%
600A Frame | 400A | 3P | 100kA@240V, 65kA@480V, 25kA@600V | Electronic (MicroLogic 3.3 LI)
Square D's PowerPact LJL36400CU31X L-Frame circuit breaker provides 400A 3-pole circuit protection engineered for commercial and industrial electrical distribution systems. Featuring extra-high interrupting capacity rated at 100kA@240V, 65kA@480V, 25kA@600V and operating at 600V AC, this breaker delivers proven and reliable overcurrent protection performance. The LJL36400CU31X features a MicroLogic 3.3 LI 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. This unit mount breaker features lug (unit mount) connections with AL400L61K3/AL600LS52K3 terminations, accepting (2) 2/0-500 kcmil Al/Cu conductors for versatile wiring applications. With overall dimensions of 10.24" H x 5.51" W x 5.67" D and weighing ~25 lbs, the LJL36400CU31X delivers L-Frame frame protection in a space-efficient package suitable for dense electrical equipment layouts. UL 489 listed and CSA C22.2 No.5 certified, the LJL36400CU31X meets IEC/EN 60947-2 international standards for global project specification and acceptance. Applications include feeder circuit protection, branch circuit protection, motor control center installations, panelboard and switchboard applications, and industrial power distribution systems requiring L-Frame frame-class protection capabilities. The LJL36400CU31X 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 (MicroLogic 3.3 LI) 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.
