Square D HDA36150UR 150A 3-Pole 600 V Circuit Breaker

Square D HDA36150UR is a rugged 150 A, 3‑pole circuit breaker designed for demanding three‑phase power systems up to 600 V. Identified by part number HDA36150UR, this device delivers dependable overcurrent protection where uptime and safety are non‑negotiable.

Ideal for industrial and commercial applications, this breaker guards distribution panels, motor control centers, and other 3‑phase equipment by interrupting fault currents promptly. Its three‑pole design ensures coordinated tripping across all phases, helping protect conductors, motor windings, and control circuits from damage and reducing the risk of dangerous arc faults.

• Current rating: 150 A
• Poles: 3
• Voltage rating: 600 V
• Part number: HDA36150UR

Why this model stands out

• Three‑pole coordination: Simultaneous disconnection of all phases improves protection across the entire circuit and supports safer shutdowns in fault conditions.
• Brand reliability: Built by Square D, a long‑standing name in electrical protection known for consistent performance in tough environments.
• Direct applicability to Square D systems: Designed to integrate with compatible panels and distribution architectures, helping maintenance teams streamline replacements and inventory.

Practical use cases

• Three‑phase motors, pumps, conveyors, and HVAC equipment in commercial facilities and manufacturing plants.
• Power distribution nodes in warehouses, data centers, and process plants that operate at up to 600 V.

Choosing the HDA36150UR means prioritizing reliable protection for high‑current, three‑phase circuits. It’s a strategic fit when your goal is consistent fault interruption, reduced downtime, and peace of mind that your distribution network is guarded by a trusted Square D solution.