Square D HGA36150UH 150A 3-Pole 600 V Circuit Breaker

Meet the Square D HGA36150UH, a purpose-built circuit breaker engineered for demanding 3‑phase electrical systems. With a 150 A current rating, three poles, and a 600 V maximum voltage, this unit is designed to deliver dependable overcurrent protection for industrial panels, commercial equipment racks, and other three‑phase distribution in harsh environments. Trustworthy protection starts here, so you can keep critical machinery up and running with confidence.

Key specifications at a glance

• Current rating: 150 A
• Poles: 3-pole
• Voltage rating: 600 V maximum
• Part number: HGA36150UH
• Brand: Square D

Why this model stands out

• Precise three‑phase protection: The 3‑pole configuration ensures coordinated interruption across all three phases, safeguarding motors, drives, and other equipment from phase faults and overloads.
• Robust 600 V capability: Designed for modern electrical distributions that operate at higher voltages, this breaker provides reliable performance where voltage stress is a concern.
• Direct, dependable replacement: With its specific form and electrical characteristics, the HGA36150UH is a straightforward fit for Square D panels and compatible enclosures, helping you minimize downtime during replacement or upgrades.

Ideal use cases

• Protecting three‑phase motor circuits in manufacturing lines, conveyors, and processing equipment.
• Distribution feeders and service entrances in commercial facilities that rely on consistent, trip‑free performance.
• HVAC, pumping stations, and other equipment that demand reliable protection against short circuits and overloads.

Practical considerations and tips

• Verify panel compatibility: ensure your enclosure is rated for 150 A, 3‑pole breakers and supports the HGA family form factor.
• Safety first: installation should be performed by a qualified electrician, with all power sources de-energized and proper lockout/tagout procedures followed.
• Maintenance mindset: routinely inspect the breaker for signs of wear or overheating in high‑duty environments, and replace promptly if performance appears degraded.

For professionals seeking reliable, three‑phase overcurrent protection in a 600 V system, the Square D HGA36150UH combines precise protection with durable construction. It’s not just a component—it’s a critical safeguard for uptime, equipment longevity, and electrical safety in demanding applications.