Square D HGA36150SK 150A 3-Pole 600 V Circuit Breaker

The Square D HGA36150SK is a robust 3‑pole circuit breaker designed for reliable protection of 3‑phase power systems. With a 150 A current rating and a 600 V maximum, this device offers dependable interruption to keep electrical distribution safe and minimize downtime in commercial and light‑industrial environments. Built to meet the demands of active electrical panels, it’s the practical choice for professionals who value precise protection and consistent performance.

• Amperage protection: 150 A rating provides strong, targeted protection for feeders and motor circuits, helping prevent overheating and equipment damage in demanding loads.
• Three-pole configuration: Fully interrupts all three conductors in a 3‑phase system for balanced protection and coordinated tripping, reducing risk to connected equipment.
• Voltage capability: 600 V maximum, suitable for a wide range of industrial and commercial distribution scenarios where higher voltage circuits are present.
• Precise part identification: Part number HGA36150SK ensures you’re selecting the exact Square D replacement or compatible device for compatible panel families and installations.

Why this model stands out

• Tailored for Square D systems: Designed to integrate with Square D panel boards, promoting consistent performance across your distribution network.
• Dependable protection for demanding loads: Ideal for motor feeders, HVAC control circuits, and other 3‑phase equipment that requires reliable interruption during faults.
• Clear identification and sourcing: The distinct HGA36150SK designation helps ensure you’re ordering the exact device your panel expects, reducing replacement errors.

Use cases and scenarios

• Motor control lines in manufacturing facilities where 3‑phase loads demand solid protection against overloads and short circuits.
• Distribution panels in commercial buildings supplying large HVAC, pumps, or processing equipment.
• Any 3‑phase circuit within a 600 V class system that requires dependable, trip‑capable protection at 150 A.

Tips for best results

• Verify that your enclosure accepts a 3‑pole, 600 V device and that the HGA36150SK form factor matches your panel design before installation.
• Periodically inspect the breaker for signs of wear, including trip history and mechanical operation, and replace any damaged components promptly to maintain system safety.
• Document the part number (HGA36150SK) in your maintenance records to streamline future replacements and panel service.

Technical specifications at a glance

• Part number: HGA36150SK
• Current rating: 150 A
• Poles: 3
• Voltage rating: 600 V