Square D HDA36150UK 150A 3-Pole 600 V Circuit Breaker

Introducing the Square D HDA36150UK 150A 3-Pole 600 V Circuit Breaker — a robust protection device built for demanding three-phase power systems. With Part Number HDA36150UK, this Square D circuit breaker delivers a solid 150 A current rating across three poles, ready to intercept overloads and prevent costly faults in busy facilities.

Designed for three-phase systems, the 3-pole configuration provides balanced protection across all phases, reducing the risk of uneven loading or phase-to-phase faults. The 600 V voltage rating makes it suitable for mid- to high-voltage distribution applications in commercial and light industrial environments.

Key features and benefits

• Precise protection for three-phase circuits — the 3-pole design guards all phases, supporting system stability and motor longevity.
• High current capacity — 150 A rating handles substantial loads typical of industrial feeders and large motors or HVAC circuits.
• Wide voltage compatibility — 600 V maximum working voltage supports a range of distribution configurations.
• Reliable Square D engineering — part of a proven line known for dependable performance in challenging environments.
• Easy integration — designed to fit standard Square D panels and distribution boards, reducing installation time and compatibility concerns.

Ideal for electrical contractors, facility managers, and maintenance engineers working with three-phase power in commercial or light industrial settings. Use this breaker for motor feeders, power distribution cabinets, HVAC systems, and critical loads where robust overcurrent protection is essential.

Use cases and scenarios

• Protecting three-phase motor circuits in manufacturing lines and assembly bays
• Feeding large HVAC fans and pumps in commercial buildings
• Supplying distribution panels in warehouses, data centers, and workshops

Why choose the HDA36150UK over generic alternatives? It combines three-pole balanced protection with a sturdy mechanical design, minimizing nuisance trips and enhancing reliability in environments with dust, vibration, or temperature variation. The HDA36150UK model is purpose-built to deliver consistent performance, reliable panel-fit compatibility, and a durable safety margin for ongoing operations.

Technical snapshot

• Current rating: 150 A
• Poles: 3
• Voltage rating: 600 V
• Part number: HDA36150UK
• Brand: Square D

Installation note: Ensure compliance with local electrical codes and panel listing requirements. This device is intended for installation by qualified professionals familiar with three-phase power systems and safe electrical practices.