Square D PowerPact JLA34250WU54X J-Frame 3P 250A Mission Critical I-Line Plug-On
250A Frame | 250A | 3P | 125kA@240V, 100kA@480V, 50kA@600V | Electronic Mission Critical (MicroLogic 6.2E LSIG)
Engineered for demanding electrical systems, the Square D PowerPact JLA34250WU54X is a J-Frame 250A 3-pole molded case circuit breaker with very high interrupting capacity. Rated at 125kA@240V, 100kA@480V, 50kA@600V and operating at 480Y/277V AC, it provides reliable and consistent protection for power distribution infrastructure applications. The JLA34250WU54X features a MicroLogic 6.2E 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. This i-line plug-on breaker features i-line plug-on connections with I-Line Bus Connection terminations, accepting 3/0-350 kcmil Al/Cu conductors for versatile wiring applications. With overall dimensions of 9.70" H x 4.50" W x 5.17" D and weighing ~12 lbs, the JLA34250WU54X delivers J-Frame frame protection in a space-efficient package suitable for dense electrical equipment layouts. Compliant with UL 489, CSA C22.2 No.5, and IEC/EN 60947-2 international standards, the JLA34250WU54X carries multiple certifications for worldwide acceptance and specification. Ideal for commercial buildings, industrial facilities, data centers, healthcare facilities, and critical infrastructure power distribution requiring reliable 250A 3-pole overcurrent protection. As part of the proven PowerPact family, the JLA34250WU54X delivers dependable protection backed by Schneider Electric's extensive global engineering heritage and comprehensive industry-leading technical support resources.
Key Features
This PowerPact MCCB features Electronic Mission Critical (MicroLogic 6.2E LSIG) trip protection rated 250A at 480Y/277V AC. Frame size: 250A. 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.
