Square D HDA36150U43XAABCSJYP 150A 3-Pole 600 V Circuit Breaker

Meet the Square D HDA36150U43XAABCSJYP, a purpose-built 150 A circuit breaker designed for demanding 3-phase, 600 V electrical systems. This 3-pole device delivers dependable protection for feeders and branch circuits, helping prevent damage from overloads and short circuits in industrial and commercial environments.

Designed for serious power distribution, this breaker is ideal for protecting large motors, compressors, conveyors, HVAC equipment, and other high-load installations. Its three-pole configuration makes it well-suited for balanced 3-phase circuits, delivering coordinated protection across all three phases when paired with compatible Square D panels.

Key specifications

• Current rating: 150 amperes
• Poles: 3
• Voltage rating: 600 volts
• Part number: HDA36150U43XAABCSJYP

Why choose this Square D breaker

• A dedicated 150 A rating ensures reliable current limiting for heavy machinery and large equipment loads.
• Three-phase reliability: The 3-pole design provides balanced protection across all phases, helping maintain stable operation of motors and powered systems.
• Industrial-grade build for demanding panels: Engineered to work within compatible Square D panels, offering a robust solution for professional electrical installations.
• Clear part tracing: The exact part number HDA36150U43XAABCSJYP makes ordering, stocking, and maintenance straightforward for installers and facilities teams.

This circuit breaker is a practical choice for facilities managers, electricians, and systems engineers seeking a reliable 150 A, 3-pole, 600 V protection device within a Square D repute for solid performance. When upgrading or replacing protective devices, ensure compatibility with your panel and three-phase distribution setup. For optimal results, pair this breaker with appropriate enclosures and follow standard electrical safety practices during installation and inspection.