Square D HGA36125UNYP 125A 3-Pole 600 V Circuit Breaker

The Square D HGA36125UNYP is a rugged 125-amp, three-pole circuit breaker designed to deliver dependable overcurrent protection for commercial and light industrial electrical systems. With a 600-volt rating, this device is built to handle higher-voltage distribution networks while keeping circuits safe and shutdowns predictable when faults occur. As a part of the Square D lineage, it combines solid construction with trusted performance you can rely on in demanding environments.

Key specifications at a glance

• Current rating: 125 A
• Poles: 3 (three-pole configuration for 3-phase circuits)
• Voltage rating: 600 V
• Part number: HGA36125UNYP

Why this 3-pole breaker matters

• Protects three-phase feeders and equipment from overcurrent events, helping prevent wiring damage, equipment failure, and downtime.
• High-voltage capability (up to 600 V) makes it suitable for a range of commercial and light industrial power distribution applications.
• Reliable Square D engineering means predictable trip performance and consistent protection across service cycles.
• Easy sourcing and replacement within Square D-compatible panels and distribution setups, reducing downtime when service parts are required.

Ideal use scenarios

• 3-phase motor feeders in manufacturing, warehouses, or processing facilities needing solid overcurrent protection.
• Power distribution blocks and panelboards in commercial buildings where 600 V systems are in play.
• Retrofits or replacements for aging infrastructure that require a trusted, compatible Square D part number.

Practical considerations and tips

Before installation, confirm panel compatibility with the HGA36125UNYP and ensure wiring conforms to relevant electrical codes. This part is purpose-built for 3-phase distribution where a 125 A, 3-pole solution is appropriate, and it pairs well with other Square D equipment to maintain a cohesive protection strategy across your electrical system. By selecting a trusted brand and a precise part number, you’re choosing a dependable path to safer, more reliable power distribution.