Square D PowerPact JJL34250WU31X J-Frame 3P 250A Mission Critical Unit Mount
250A Frame | 250A | 3P | 100kA@240V, 65kA@480V, 25kA@600V | Electronic Mission Critical (MicroLogic 3.2 LI)
The Schneider Electric Square D PowerPact JJL34250WU31X is a J-Frame molded case circuit breaker rated at 250 amperes for 3-pole applications in commercial and industrial power distribution systems. This premium breaker delivers extra-high interrupting capacity rated at 100kA@240V, 65kA@480V, 25kA@600V, operating at 480Y/277V AC for reliable overcurrent protection in critical electrical infrastructure. The JJL34250WU31X features a MicroLogic 3.2 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. This unit mount breaker features lug (unit mount) connections with AL250JD Lug terminations, accepting 3/0-350 kcmil Al/Cu conductors for versatile wiring applications. With overall dimensions of 5.90" H x 4.50" W x 3.63" D and weighing ~12 lbs, the JJL34250WU31X 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 JJL34250WU31X 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. The PowerPact JJL34250WU31X 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 Mission Critical (MicroLogic 3.2 LI) trip protection rated 250A at 480Y/277V AC. Frame size: 250A. Interrupting capacity: 100kA@240V, 65kA@480V, 25kA@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.
