Square D PowerPact HLL37050D87 H-Frame 3P 50A DC 500Vdc
150A Frame | 50A | 3P | 125kA@240V, 100kA@480V, 50kA@600V | Thermal-Magnetic (Fixed DC)
Engineered for demanding electrical systems, the Square D PowerPact HLL37050D87 is a H-Frame 50A 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 (D87) trip unit, the HLL37050D87 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. The HLL37050D87 features unit mount configuration with lug (unit mount) connections and AL150HD Lug terminations for straightforward installation. Accepting 14-3/0 AWG Al/Cu conductors, this breaker measures 5.90" H x 4.50" W x 3.63" D and weighs ~7 lbs, providing a compact footprint for space-efficient installation in panelboards, switchboards, and motor control centers. UL 489 listed and CSA certified, the HLL37050D87 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 HLL37050D87 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 (Fixed DC) trip protection rated 50A at 500V DC. Frame size: 150A. 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.
