Square D PowerPact LRL46400U43X L-Frame 4P 400A Electronic MCCB 80%
600A Frame | 400A | 4P | 200kA@240V, 200kA@480V, 100kA@600V | Electronic (MicroLogic 5.3A LSI)
Square D's PowerPact LRL46400U43X L-Frame circuit breaker provides 400A 4-pole circuit protection engineered for commercial and industrial electrical distribution systems. Featuring extreme interrupting capacity rated at 200kA@240V, 200kA@480V, 100kA@600V and operating at 600V AC, this breaker delivers proven and reliable overcurrent protection performance. The LRL46400U43X features a MicroLogic 5.3A LSI 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 LRL46400U43X features unit mount configuration with lug (unit mount) connections and AL400L61K4/AL600LS52K4 terminations for straightforward installation. Accepting (2) 2/0-500 kcmil Al/Cu conductors, this breaker measures 10.24" H x 7.09" W x 5.67" D and weighs ~30 lbs, providing a compact footprint for space-efficient installation in panelboards, switchboards, and motor control centers. Certified to UL 489, CSA, and IEC/EN 60947-2 international standards, the LRL46400U43X 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 LRL46400U43X 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 5.3A LSI) trip protection rated 400A at 600V AC. Frame size: 600A. Interrupting capacity: 200kA@240V, 200kA@480V, 100kA@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.
