Square D HGA36125UA 125A 3-Pole 600 V Circuit Breaker

Meet the Square D HGA36125UA 125A 3-Pole 600 V Circuit Breaker — a purpose-built solution for protecting three‑phase electrical circuits in commercial and industrial panels. With a 125‑amp current rating, this breaker delivers targeted, reliable overcurrent protection for demanding equipment while fitting neatly into Square D installations that require the HGA family of devices.

What this breaker does

The HGA36125UA is a 3‑pole device rated for use up to 600 V, designed to safeguard multi‑phase circuits from overloads and potential damage. It’s the exact replacement option when you need a precise 125A, three‑pole breaker that aligns with existing Square D panel configurations.

Key features and benefits

• 125 A current rating ensures appropriate protection for medium-to-high load three‑phase circuits, including motors and drives.
• 3‑pole design provides balanced protection across all phases in three‑phase systems, helping prevent phase imbalance and equipment stress.
• 600 V voltage rating suits industrial and commercial distribution environments, supporting a wide range of equipment safely.
• Part number HGA36125UA identifies an exact replacement for compatible Square D panels, reducing guesswork during maintenance or upgrades.
• Square D compatibility engineered for use within Square D electrical systems, ensuring reliable integration and consistent performance.

Ideal use cases

• Protection for three‑phase feeders delivering power to motors, conveyors, pumps, and HVAC systems.
• Panelboard or distribution board environments where a dedicated 125A, 3‑pole breaker is required.
• Replacement for aging or failed breakers in existing Square D installations, helping maintain system reliability without altering wiring.

Practical guidance for installation and use

Ensure the panel you’re working with is compatible with HGA‑series breakers and designed to accept a 3‑pole, 125A, 600V device. Follow all applicable electrical codes and the panel manufacturer’s installation instructions. When replacing an old breaker, verify that the new unit’s specifications (125A, 3‑pole, 600V) match the circuit requirements and that conductors are properly terminated and secured.

Designed for professionals who value precise protection, straightforward replacement, and seamless operation within the Square D ecosystem, the Square D HGA36125UA 125A 3-Pole 600 V Circuit Breaker is a dependable choice for safeguarding essential three‑phase equipment and keeping critical processes running smoothly.