Square D HGA36125UKYP 125A 3-Pole 600 V Circuit Breaker

Meet the Square D HGA36125UKYP, a 125A, 3-pole circuit breaker crafted for reliable protection of three‑phase electrical systems in commercial and light industrial settings. With a 600 V maximum rating and three active poles, this unit is designed to interrupt power across all phases when overload or fault conditions arise, helping safeguard motors, machines, and critical equipment.

Key details at a glance

• Part number: HGA36125UKYP
• Current rating: 125 A
• Poles: 3
• Voltage rating: 600 V

Why this 3‑pole design matters — A true three‑phase protector that covers all conductors in a three‑phase circuit, reducing the risk of uneven load sharing and phase imbalance. This means smoother operation for motors and other three‑phase equipment, with fewer nuisance trips and more predictable protection during fault events.

Built for durability and dependable performance — Square D has a long-standing reputation for robust electrical protection devices. This breaker is designed to integrate with compatible Square D panels and distribution systems, offering a dependable solution for equipment protection in demanding environments.

Ideal applications — Use this 125A, 3‑pole, 600V breaker in settings like:

• Industrial control panels and motor control centers
• Three‑phase power distribution in commercial facilities
• HVAC systems, conveyors, pumps, and other large three‑phase loads
• Data centers or equipment rooms where reliable phase protection is crucial

Practical considerations for installation and replacement — Ensure your panel or switchboard is rated for 600V and accepts a 3‑pole device, and verify compatibility with the HGA36125UKYP part. Use the correct line/load orientation per your panel’s documentation, and keep the exact part number on hand for quick ordering and inventories. Follow applicable electrical codes and manufacturer torque specifications during installation and maintenance.

This Square D circuit breaker delivers clear, credible protection for three‑phase systems with a precise 125 A capacity and a durable build, making it a thoughtful choice for professionals prioritizing reliability, compatibility, and ease of maintenance in electrical distribution. HGA36125UKYP is the trusted part you can rely on when safeguarding essential equipment and workflows.