Square D PowerPact LGL37030D27 L-Frame 3P 300A DC 500Vdc
600A Frame | 300A | 3P | 65kA@240V, 35kA@480V, 18kA@600V | Thermal-Magnetic (DC Adjustable)
The Schneider Electric Square D PowerPact LGL37030D27 is a L-Frame molded case circuit breaker rated at 300 amperes for 3-pole applications in commercial and industrial power distribution systems. This premium breaker delivers high interrupting capacity rated at 65kA@240V, 35kA@480V, 18kA@600V, operating at 500V DC for reliable overcurrent protection in critical electrical infrastructure. Featuring a TMD DC (D27) trip unit, the LGL37030D27 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. Configured for unit mount installation, the LGL37030D27 utilizes lug (unit mount) connections with AL600LS52K3 terminations designed for reliable conductor termination. The unit accommodates (2) 2/0-500 kcmil Al/Cu conductors within compact overall dimensions of 10.24" H x 5.51" W x 5.67" D weighing ~25 lbs, optimizing installation density in electrical distribution equipment. UL 489 listed and CSA certified, the LGL37030D27 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. As part of the proven PowerPact family, the LGL37030D27 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 Thermal-Magnetic (DC Adjustable) trip protection rated 300A at 500V DC. Frame size: 600A. Interrupting capacity: 65kA@240V, 35kA@480V, 18kA@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.
