Square D HLA36150UK 150A 3-Pole 600 V Circuit Breaker

Square D HLA36150UK 150A 3-Pole 600 V Circuit Breaker is a dependable, three‑phase safeguarding solution designed for UK electrical systems. With a 150 A current rating and a 600 V voltage rating, this unit provides precise, reliable protection for main feeders and large motors in industrial and commercial environments. The 3‑pole design ensures all phases disconnect together, reducing the risk of phase imbalance and equipment damage during fault conditions.

Key specifications at a glance

• Part Number: HLA36150UK
• Current rating: 150 A
• Poles: 3
• Voltage rating: 600 V

Why this matters in real-world installations: a 3‑pole breaker like the Square D HLA36150UK provides comprehensive protection for three‑phase feeders, helping to prevent serious damage to motors, pumps, conveyors, and other heavy loads. The 600 V rating makes it suitable for higher‑voltage distribution in commercial facilities and light industrial setups.

Who this is ideal for

• Facilities with three‑phase power distribution needing a robust main disconnect
• UK-based industrial panels and distribution boards that require a 150 A, 3‑pole, 600 V solution
• Maintenance teams seeking a dependable replacement part for aging or worn breakers in three‑phase systems

Practical use cases

• Protecting large motors in manufacturing lines, refrigeration units, and HVAC systems fed from three-phase supply
• Serving as the main disconnect in distribution boards where quick, symmetric phase disconnection is essential
• Replacing a worn or failed breaker in a three‑phase panel to restore safe, code‑compliant protection

Installation and compatibility considerations

This breaker is designed for three‑phase systems and is compatible with Square D panels that support the HLA series. When installing, follow the manufacturer’s guidelines to ensure secure mounting, proper clearance, and correct electrical connections for safe operation. Confirm fitment with your panel’s bus bar configuration and regional electrical standards to maintain compliance.

Value and differentiation

What sets the Square D HLA36150UK apart is its combination of high‑current capability (150 A) and true three‑phase protection in a UK‑specific variant. This means dependable fault clearing across all phases, reduced risk of phase unbalance, and a straightforward, unified solution for mid‑to‑high‑demand three‑phase circuits. If you’re upgrading from a smaller single‑ or two‑pole breaker, this unit provides a scalable path to safer, more robust distribution without compromising on compatibility or performance.

In short, the Square D HLA36150UK 150A 3-Pole 600 V Circuit Breaker is a purpose‑built choice for reliable three‑phase protection in UK facilities, delivering clear, immediate advantages for equipment longevity, safety, and operational uptime.