Square D HDA36150U31XAABCSHYP 150A 3-Pole 600 V Circuit Breaker

The Square D HDA36150U31XAABCSHYP 150A 3-Pole 600 V Circuit Breaker is a purpose-built protection device designed for demanding three-phase electrical systems. Built to handle substantial loads, this breaker provides reliable overcurrent protection for critical feeders in commercial and industrial environments. Its exact model designation—HDA36150U31XAABCSHYP—ensures you’re selecting a component that matches your Square D inventory and enclosure specifications.

Key specifications at a glance

• Current rating: 150 A
• Poles: 3 (three-pole design for three-phase circuits)
• Voltage rating: up to 600 V
• Part number: HDA36150U31XAABCSHYP

Ideal use cases

• Protection for three-phase feeders in commercial and light-industrial panelboards
• Main distribution feeds in 600 V systems that require robust, high-current interrupting capabilities
• Protection for equipment in electrical rooms where reliable trip performance is essential

What makes this model stand out

• Precise three-pole configuration ensures balanced protection across all phases, reducing the risk of uneven fault conditions
• 150 A rating provides capable protection for sizable branch circuits and feeders without compromising system uptime
• 600 V compatibility makes it suitable for a wide range of commercial and industrial installations while maintaining a compact footprint for space-constrained panels
• Designed to integrate smoothly with Square D enclosures and compatible bus systems, offering a cohesive, dependable protection solution within existing infrastructure

Practical considerations and tips

• Verify panel labeling and enclosure compatibility to ensure the 600 V rating and three-pole configuration align with your installation requirements
• Use this model to consolidate protection for heavy three-phase feeders, reducing complexity and improving maintenance traceability
• Keep a matching set of Square D accessories on hand for wiring, mounting, and secure termination within your panel

For professionals selecting a proven, high-current circuit protection solution in 600 V three-phase systems, the Square D HDA36150U31XAABCSHYP 150A 3-Pole 600 V Circuit Breaker delivers reliable performance, precise protection, and seamless compatibility with existing Square D installations.