Square D HGA36150U43XAABCSHYP 150A 3-Pole 600 V Circuit Breaker

Meet the Square D HGA36150U43XAABCSHYP, a purpose-built circuit breaker engineered to protect three-phase power systems up to 600 volts. With a 150 A current rating across three poles, this unit delivers balanced protection for all phases, helping to prevent motor damage, overheating, and electrical faults from cascading through your panel.

Key specifications

• Part Number: HGA36150U43XAABCSHYP
• Current rating: 150 A
• Poles: 3
• Voltage rating: 600 V
• Brand: Square D

Why this breaker stands out is its alignment with three-phase distribution needs. The 3-pole design ensures coordinated protection across all live conductors, which is essential for motors, compressors, and other heavy-load equipment that rely on stable 3-phase power. Designed to integrate with Square D panels and enclosures, this breaker helps maintain consistent protection across your electrical infrastructure.

Ideal use scenarios

• Three-phase feeders powering industrial motors, HVAC equipment, or large compressors
• Commercial electrical rooms distributing power to three-phase equipment and large loads
• Data center or server room setups where reliable, balanced protection across phases supports uptime

Practical tips for installation and use

• Verify that system voltage aligns with the 600 V rating before installation to ensure proper trip performance
• Follow torque specifications for terminal connections to maintain secure, long-lasting contact
• Inspect the panel fit and alignment to confirm compatibility with Square D enclosures and upstream protection devices