Square D PowerPact LLL46400CU44X L-Frame 4P 400A Electronic MCCB 100%
600A Frame | 400A | 4P | 125kA@240V, 100kA@480V, 50kA@600V | Electronic (MicroLogic 6.3A LSIG)
The PowerPact LLL46400CU44X from Schneider Electric's Square D product line is a L-Frame 4-pole 400-amp circuit breaker designed for professional electrical installations and industrial systems. This MCCB delivers very high interrupting capacity of 125kA@240V, 100kA@480V, 50kA@600V at 600V AC for dependable overcurrent protection performance. The LLL46400CU44X 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. The LLL46400CU44X 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 LLL46400CU44X 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 PowerPact LLL46400CU44X represents Schneider Electric's commitment to electrical safety, performance, and reliability in power distribution equipment for professional electrical installations worldwide.
Key Features
This PowerPact MCCB features Electronic (MicroLogic 6.3A LSIG) trip protection rated 400A at 600V AC. Frame size: 600A. Interrupting capacity: 125kA@240V, 100kA@480V, 50kA@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.
