Square D HGA36100U43XAABCSH 100A 600 V Circuit Breaker

Meet the Square D HGA36100U43XAABCSH, a rugged circuit breaker crafted for dependable overcurrent protection in high-voltage electrical systems. With a 100 A current rating and a 600 V maximum system voltage, this device is designed to shield critical feeders and branch circuits in commercial and light industrial environments. Identified by part number HGA36100U43XAABCSH, it slots neatly into Square D’s trusted protection lineup for reliable performance when and where you need it most.

• Model/Part: HGA36100U43XAABCSH
• Brand: Square D
• Current rating: 100 A
• Voltage rating: 600 V

Where and how to use

This circuit breaker is intended for installation in electrical panels and distribution boards that accept Square D breakers, providing essential protection for feeders and large-load circuits within 600 V systems. It’s a practical choice for service entrances, motor control panels, and distribution setups that require reliable interruption of fault current while maintaining system integrity.

What sets it apart

• High-voltage readiness — rated to handle up to 600 V, making it suitable for commercial and industrial applications.
• Brand compatibility — engineered to integrate smoothly with Square D panelboards and accessories, reducing installation complexity and downtime.
• Procurement clarity — a clearly identified part number and 100 A rating streamline stocking and future maintenance.

Practical installation tips

Before installing, confirm that your panel accepts HGA-series breakers and that the circuit load aligns with the 100 A rating. Use appropriate mounting hardware and follow standard electrical practices for secure seating and proper contact with the bus bars. For upgrades, plan protection levels consistently across related circuits to maintain balanced protection throughout the distribution panel.