Square D PowerPact LRA36400CU31X L-Frame 3P 400A Electronic I-Line 100%
600A Frame | 400A | 3P | 200kA@240V, 200kA@480V, 100kA@600V | Electronic (MicroLogic 3.3 LI)
Square D's PowerPact LRA36400CU31X L-Frame circuit breaker provides 400A 3-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 LRA36400CU31X 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. Configured for i-line plug-on installation, the LRA36400CU31X utilizes i-line plug-on connections with I-Line Bus Connection terminations designed for reliable conductor termination. The unit accommodates (2) 3/0-500 kcmil Al/Cu conductors within compact overall dimensions of 15.24" H x 7.09" W x 8.07" D weighing ~30 lbs, optimizing installation density in electrical distribution equipment. Certified to UL 489, CSA, and IEC/EN 60947-2 international standards, the LRA36400CU31X 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 LRA36400CU31X 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 3.3 LI) 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.
