Square D HJA36100 - 100A, 3-Pole, Circuit Breaker

Meet the Square D HJA36100 — a robust 100A, 3-pole circuit breaker designed to deliver dependable overcurrent protection in demanding electrical environments. Built for industrial, commercial, and OEM applications, this unit integrates into panelboards, switchboards, and control panels to safeguard equipment and keep systems running smoothly.

Key features that matter in the real world

• Three-pole configuration: Ideal for 3-phase power, enabling balanced protection across all phases in motor control centers and distribution panels.
• 100A current rating: Provides precise protection for feeders, motors, and downstream circuits, reducing the risk of wiring damage and unplanned downtime.
• Versatile installation: Designed to fit within panelboards, switchboards, and control panels, simplifying upgrades and retrofits in existing electrical rooms.
• Durable, reliable design for demanding environments: Built to withstand industrial use, vibration, and temperature variations common in commercial facilities and manufacturing settings.
• Clear, safe operation: Clear line-side and load-side connections with straightforward replacement in the event of a fault.

Practical use cases

• New installations in industrial facilities where 3-phase power distribution needs reliable protection for feeders and motors.
• OEM equipment housings and control panels requiring a robust 3-pole breaker with a 100A rating.
• Repairs or upgrades of existing distribution panels and motor control centers to maintain protective coordination.

Why this matters for your operation

With the Square D HJA36100, you gain a component that not only interrupts excess current but also supports safer, more predictable maintenance windows. It helps prevent faults and unwarranted outages by acting as a critical line of defense in your electrical distribution strategy. In environments where uptime and personnel safety are paramount, this breaker offers a reliable solution tailored to three-phase systems.