Square D PowerPact LLL36400RU33X L-Frame 3P 400A Field-Interch Electronic 100%
600A Frame | 400A | 3P | 125kA@240V, 100kA@480V, 50kA@600V | Electronic Field-Interch 100% (MicroLogic 3.3S LSI)
Schneider Electric offers the Square D PowerPact LLL36400RU33X, a premium L-Frame 3-pole molded case circuit breaker delivering 400-ampere protection for critical electrical infrastructure and power distribution. With very high interrupting capacity of 125kA@240V, 100kA@480V, 50kA@600V, this MCCB operates at 600V AC to provide comprehensive and dependable circuit protection. The LLL36400RU33X features a MicroLogic 3.3S 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. Configured for unit mount installation, the LLL36400RU33X 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. UL 489 listed and CSA C22.2 No.5 certified, the LLL36400RU33X 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 LLL36400RU33X 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 3.3S LSI) 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.
