Square D HGA36150U31XAABCSK 150A 3-Pole 600 V Circuit Breaker

Engineered for dependable protection in demanding electrical environments, the Square D HGA36150U31XAABCSK is a 150 A, 3-pole, 600 V circuit breaker built to withstand the rigors of commercial and light industrial power distribution.

• Balanced three-phase protection: The 3-pole design guards all phases evenly, preventing imbalances that can damage motors and equipment.
• High current capability: A 150 A rating supports large feeders and motor circuits while minimizing nuisance trips during normal startup surges.
• Wide voltage compatibility: With a 600 V rating, it suits a broad range of distribution networks and heavy-load equipment.
• Reliable protection you can count on: Square D engineering delivers consistent trip performance to interrupt fault currents when protection is required.

Designed for installers and facility engineers who need a durable protection device that fits Square D panels and assemblies, this breaker is ideal for panel boards, switchgear, and equipment rooms where three-phase loads demand solid overcurrent protection.

Use cases

• Three-phase motor circuits and feeders in manufacturing lines
• HVAC equipment and pumps requiring balanced phase protection
• Data center auxiliary power distribution where reliable trip control matters
• Industrial lighting and power distribution in commercial facilities

Specifications

• Current rating: 150 A
• Poles: 3
• Voltage rating: 600 V
• Part number: HGA36150U31XAABCSK
• Brand: Square D (Schneider Electric)

Whether upgrading an existing installation or stocking your fleet for field work, the Square D HGA36150U31XAABCSK delivers the capacity, protection, and reliability required for steady, safe power distribution in demanding environments.