Square D HGA36100U44XAABCSJ 1000A 3-Pole 600 V Circuit Breaker

Meet the Square D HGA36100U44XAABCSJ, a purpose-built 1000 A, 3-pole circuit breaker designed to safeguard large three-phase loads in demanding environments. With a 600 V rating, this device provides robust protection for industrial panels and heavy-duty electrical distributions where reliability is non-negotiable.

Powerful three-pole protection for demanding industrial circuits

The HGA36100U44XAABCSJ combines a high-current rating with a true three-pole design, ensuring synchronized protection across all phases. This minimizes the risk of imbalanced loads and phase-to-ground faults, which is critical for equipment like large motors, compressors, and other heavy-duty machinery operating in 600 V systems. When properly matched to compatible Square D panel configurations, it delivers clear, predictable tripping behavior that aids in quick fault diagnosis and rapid recovery.

Key specifications

• Part number: HGA36100U44XAABCSJ
• Current rating: 1000 A
• Poles: 3
• Voltage rating: 600 V

Why the 3-pole design matters

A 3-pole configuration protects all phases equally, which is essential for balanced power delivery in three-phase systems. This ensures motor starters, pumps, and other high-load equipment receive consistent protection, reducing the likelihood of nuisance trips and extending the uptime of critical processes.

Ideal use scenarios

• Industrial facilities with large three-phase motors and heavy machinery
• Commercial sites and data centers requiring dependable main protection for 600 V distribution
• Electrical panels and enclosures where a high-current, three-pole breaker is needed to safeguard pivotal loads

Practical considerations

Ensure compatibility with your panel or enclosure that supports Square D breakers in the HGA family, and verify that your installation aligns with a 3-pole, 600 V configuration. Adhere to all local electrical codes and safety practices during installation and maintenance. Regular inspections of connections and enclosure cleanliness help maintain reliable performance over time.

What customers gain

• Reliable protection for high-current, three-phase circuits
• Consistent protection across all phases, promoting equipment longevity
• A trusted Square D component that integrates with established electrical distribution systems