Square D HJL36100U44XAABCSJYP 100A 3-Pole 600 V Circuit Breaker

Introducing the Square D HJL36100U44XAABCSJYP — a purpose-built 100A, 3-Pole, 600 V circuit breaker crafted for reliable protection in three-phase power systems. This part-number-specific device is designed to integrate seamlessly with Square D installations, delivering consistent performance where uptime and safety matter most.

Built to safeguard demanding commercial and light industrial circuits, this breaker’s 100 A rating provides solid protection for feeders and motors, while its 3-pole configuration ensures balanced, synchronized switching across all three phases. The 600 V maximum rating makes it suitable for a wide range of industrial electrical environments, helping to prevent wiring damage, equipment wear, and unplanned downtime.

Key specifications

• Brand: Square D
• Part number: HJL36100U44XAABCSJYP
• Current rating: 100 A
• Poles: 3
• Voltage rating: 600 V

Why this model stands out

• Exact replacement value: The precise part number (HJL36100U44XAABCSJYP) ensures compatibility with existing Square D panels and documentation, reducing guesswork during maintenance or upgrades.
• Three-phase protection: A 3-pole design simplifies wiring and offers uniform protection across all phases, helping motors, pumps, and other three-phase equipment operate more reliably.
• Robust voltage tolerance: With a 600 V rating, it supports a broad range of industrial power systems, giving you flexibility as facility needs evolve.
• Practical for panel upgrades: Ideal for retrofits, spares inventory, and ongoing service programs in facilities that rely on Square D distribution equipment.

Use cases and ideal applications

• Protection for three-phase motors, conveyors, and pumps in manufacturing or processing lines.
• Feeders and distribution circuits in commercial or light industrial panels that require dependable overcurrent protection.
• Spare part for maintenance inventories, ensuring quick replacements that match existing Square D infrastructure.
• Upgrade path for aging panels where a precise 100 A, 3-pole, 600 V solution is specified in schematics.

Installation and practical considerations

When integrating this breaker, verify panel compatibility and adhere to local electrical codes. Ensure the device is properly seated in the bus and clearly labeled to reflect its 100 A, 3-Pole, 600 V characteristics. For installation or replacement, engage a licensed electrician who can confirm system voltage, three-phase configuration, and routing within the panel to maintain safe and compliant operation.

With the Square D HJL36100U44XAABCSJYP, you’re choosing a trusted, part-number-specific solution designed to deliver dependable three-phase protection for years of service in demanding environments.