Square D HLL36150LV - 150 A, 600 V, 3-Pole Circuit Breaker | AmpState

Introducing the Square D HLL36150LV— a robust 150A, 600V, 3-pole molded case circuit breaker designed to protect your electrical distribution with precision and reliability. Built for dependable branch circuit overcurrent and short-circuit protection, it’s an ideal choice for panelboards and load centers in residential, commercial, and light industrial applications.

• Space-efficient design: Compact molded case footprint maximizes panel capacity without compromising protection, helping you optimize layout in tight spaces.
• Thermal-magnetic trip unit: Combines a temperature-based thermal element for overload protection with a magnetic trip for instantaneous response to short circuits, delivering stable, repeatable protection across varying loads.
• 3-pole configuration for 3-phase systems: Perfectly suited for 600V three-phase distribution, ensuring coordinated protection across all conductors.
• OEM panel compatibility: Engineered to match with matching OEM load centers and panelboards for reliable fit, electrical coordination, and straightforward installation.
• Versatile across environments: Designed to perform consistently in residential, commercial, and light industrial settings where dependable overcurrent and short-circuit protection is essential.

Technical specifications

• Manufacturer: Square D
• Part Number: HLL36150LV
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 150 A
• Voltage Rating: 600 V
• Poles: 3

This AmpState listing presents a dependable solution for protecting feeders, branch circuits, and equipment in 3-phase 600V systems. The HLL36150LV’s combination of compact design and precise trip logic helps limit damage from faults, reduces nuisance trips, and supports longer service life for downstream devices.

Practical use cases

• New construction or retrofit projects in light commercial spaces with 3-phase 600V infrastructure.
• Panelboard upgrades where conserving panel space is a priority without sacrificing protection.
• Feeder and branch-circuit protection for 3-phase distributions in commercial environments.

Choosing the Square D HLL36150LV means reliable, code-compliant protection with a design that fits neatly into your existing OEM panels. Its thermal-magnetic trip technology, compact profile, and three-pole 150A rating deliver peace of mind for installers, facility managers, and building occupants alike.