Square D PowerPact JJA34250WU53X J-Frame 3P 250A Mission Critical I-Line Plug-On
250A Frame | 250A | 3P | 100kA@240V, 65kA@480V, 25kA@600V | Electronic Mission Critical (MicroLogic 5.2E LSI)
Square D's PowerPact JJA34250WU53X J-Frame circuit breaker provides 250A 3-pole circuit protection engineered for commercial and industrial electrical distribution systems. Featuring extra-high interrupting capacity rated at 100kA@240V, 65kA@480V, 25kA@600V and operating at 480Y/277V AC, this breaker delivers proven and reliable overcurrent protection performance. The JJA34250WU53X features a MicroLogic 5.2E 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. 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 JJA34250WU53X 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 JJA34250WU53X 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 JJA34250WU53X 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 5.2E LSI) 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.
