Square D HJA36150U44XAABCSHYP 150A 3-Pole 600 V Circuit Breaker

Introducing the Square D HJA36150U44XAABCSHYP 150A 3-Pole 600 V Circuit Breaker — a reliable solution for protecting three-phase electrical systems in demanding environments. This unit delivers robust overload and short-circuit protection for feeders and equipment in industrial and commercial settings. With the part number HJA36150U44XAABCSHYP, a 150-amp current rating, 3 poles, and a 600-volt maximum rating, it’s designed for compatibility with high-power distribution panels.

Key specifications

• Current rating: 150 A
• Poles: 3
• Voltage rating: 600 V
• Brand/Part: Square D, HJA36150U44XAABCSHYP

Why choose this circuit breaker

This Square D breaker interrupts fault currents across all three phases, helping protect motors, drives, and control circuits from damaging overloads. The three-pole design ensures simultaneous disconnection of all phases, reducing arc exposure and enhancing safety during maintenance in 3-phase systems. Rely on a product built to integrate seamlessly with Square D electrical systems and panels that accept this form factor.

Ideal use cases

• Protection for three-phase motors and equipment feeders in manufacturing facilities
• Power distribution for commercial HVAC and handling equipment
• Reliable overcurrent protection in industrial panels and service disconnects up to 600 V

Installation and compatibility tips

Designed to integrate with Square D panels and distribution boards that accept this style of breaker. When installing, follow NEC guidelines for overcurrent protection, ensure proper mounting, and verify torque on mounting hardware and bus connections to maintain consistent performance and safety.

Maintenance and care

Perform periodic inspections and functional tests to confirm trip capability. Replace units showing signs of wear, corrosion, or degraded contacts to maintain dependable protection for your three-phase electrical system.

Choose the Square D HJA36150U44XAABCSHYP for clear, dependable protection of 3-phase circuits at up to 600 V and 150 A, helping you safeguard equipment, reduce downtime, and maintain safe, compliant power distribution.