Square D PowerPact LJL36400RU54X L-Frame 3P 400A Field-Interch Electronic 100%
600A Frame | 400A | 3P | 100kA@240V, 65kA@480V, 25kA@600V | Electronic Field-Interch 100% (MicroLogic 6.3E LSIG)
Schneider Electric offers the Square D PowerPact LJL36400RU54X, a premium L-Frame 3-pole molded case circuit breaker delivering 400-ampere protection for critical electrical infrastructure and power distribution. With extra-high interrupting capacity of 100kA@240V, 65kA@480V, 25kA@600V, this MCCB operates at 600V AC to provide comprehensive and dependable circuit protection. The LJL36400RU54X features a MicroLogic 6.3E 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. The LJL36400RU54X features unit mount configuration with lug (unit mount) connections and AL400L61K3/AL600LS52K3 terminations for straightforward installation. Accepting (2) 2/0-500 kcmil Al/Cu conductors, this breaker measures 10.24" H x 5.51" W x 5.67" D and weighs ~25 lbs, providing a compact footprint for space-efficient installation in panelboards, switchboards, and motor control centers. UL 489 listed and CSA C22.2 No.5 certified, the LJL36400RU54X 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 LJL36400RU54X 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 6.3E 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.
