Square D PowerPact LLL37045D31 L-Frame 3P 450A DC 500Vdc
600A Frame | 450A | 3P | 125kA@240V, 100kA@480V, 50kA@600V | Thermal-Magnetic (DC Adjustable)
Engineered for demanding electrical systems, the Square D PowerPact LLL37045D31 is a L-Frame 450A 3-pole molded case circuit breaker with very high interrupting capacity. Rated at 125kA@240V, 100kA@480V, 50kA@600V and operating at 500V DC, it provides reliable and consistent protection for power distribution infrastructure applications. Featuring a TMD DC (D31) trip unit, the LLL37045D31 delivers dependable thermal overload and magnetic short-circuit protection for continuous operation. The fixed trip characteristics are factory-calibrated for optimal protection performance, providing reliable overcurrent sensing and fast fault interruption across the full range of anticipated operating conditions. This unit mount breaker features lug (unit mount) connections with AL600LS52K3 terminations, accepting (2) 2/0-500 kcmil Al/Cu conductors for versatile wiring applications. With overall dimensions of 10.24" H x 5.51" W x 5.67" D and weighing ~25 lbs, the LLL37045D31 delivers L-Frame frame protection in a space-efficient package suitable for dense electrical equipment layouts. UL 489 listed and CSA certified, the LLL37045D31 meets applicable standards for DC circuit protection applications worldwide. Suitable for DC power distribution, battery energy storage systems, photovoltaic solar installations, uninterruptible power supply systems, and DC motor circuits requiring reliable direct current interruption capability. Backed by Schneider Electric's global expertise in power distribution solutions, the LLL37045D31 ensures dependable protection for critical electrical infrastructure with comprehensive factory warranty coverage and support.
Key Features
This PowerPact MCCB features Thermal-Magnetic (DC Adjustable) trip protection rated 450A at 500V DC. 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.
