Square D HDA36150U43XAABCSDYP 150A 3-Pole 600 V Circuit Breaker

Meet the Square D HDA36150U43XAABCSDYP — a purpose-built 150A, 3-pole circuit breaker designed for demanding 3-phase, 600V electrical systems. This isn’t a generic protection device; it’s a trusted solution that helps keep critical feeders and equipment safe in commercial and industrial environments.

Why this breaker stands out

• Precise 150 A protection for three-phase feeders, helping prevent damage from overloads and short circuits on demanding circuits.
• Three-pole design ensures synchronized protection across all three phases, simplifying wiring and reducing risk of phase imbalance.
• 600 V interrupting capability built to handle higher-voltage distribution typical in industrial settings, providing a robust layer of safety for motors, pumps, and control circuits.
• Trusted Square D reliability with a part number that simplifies sourcing and replacement for ongoing maintenance and upgrades in established panels.

Ideal use cases

Designed for three-phase circuits in commercial electrical rooms, manufacturing floors, and data-center feed systems where a single, dependable 3-pole breaker protects critical 600V distributions. Use it to safeguard large motors, drives, or feeder lines that require coordinated tripping across all phases without sacrificing panel space.

Compatibility and installation considerations

• Specifically suited for Square D panels and assemblies that accept HDA-series breakers, streamlining replacements and upgrades.
• Part number reference is HDA36150U43XAABCSDYP, ensuring exact fitment and performance characteristics for your voltage class and current rating.
• Follow applicable electrical codes and panel manufacturer guidelines during installation; verify wiring methods and torque requirements with the panel documentation.

Practical value and outcomes

Choosing this 150A, 3-pole, 600V breaker offers a durable, ready-to-install protection solution that helps minimize unplanned downtime by reliably interrupting fault conditions on all phases. It supports streamlined maintenance, easier part replacement, and consistent protection across your three-phase distribution network.