Square D HJA36150SR 150A 3-Pole 600 V Circuit Breaker

Engineered for demanding three-phase power systems, the Square D HJA36150SR 150A 3-Pole 600V Circuit Breaker is a genuine replacement part designed to safeguard your equipment and minimize downtime. With a 150-amp rating, a three-pole configuration, and a 600-volt maximum rating, this breaker delivers reliable protection for commercial and industrial installations that rely on balanced three-phase power.

Key specifications

• Part number: HJA36150SR
• Current rating: 150 A
• Poles: 3
• Voltage rating: 600 V
• Type: Circuit breaker (3-pole, 150 A) for three-phase systems

Why this Square D breaker stands out

This is a genuine Square D component, purpose-built to align with your panel’s bus arrangement and labeling. By choosing the exact part number, you preserve the intended protection scheme and form factor, ensuring consistent performance and easier maintenance. It’s a dependable, field-proven solution for replacing a failed breaker in a three-phase 600V distribution setup.

Ideal use cases

• Three-phase motor feeds in manufacturing lines, pumps, compressors, and conveyors
• HVAC equipment power distribution in commercial facilities
• Electrical panels and distribution boards that operate at up to 600 V

Installation and compatibility considerations

• Verify panel compatibility: designed for Square D panels and compatible three-phase arrangements
• Replace with the exact part number (HJA36150SR) to maintain protection characteristics and wiring schemes
• Follow standard electrical safety practices and the panel’s labeling for torque and mounting guidelines

Keep your three-phase system protected with a trustworthy, authentic replacement. The Square D HJA36150SR 150A 3-Pole 600V Circuit Breaker delivers precise current handling, reliable fault interruption, and seamless integration with existing Square D installations.