Square D | HJL36100U44X | Circuit Breaker | 100A | 3-Pole | 600V | Feed-Through

Introducing the Square D HJL36100U44X Circuit Breaker — a purpose-built 100A, 3-pole, 600V feed-through unit designed for maintenance, retrofit, and replacement projects where exact specifications matter. Built to integrate seamlessly with Square D panels, this breaker delivers reliable performance when you need a precise match to your existing system.

Key specifications

• Amperage: 100A
• Poles: 3-Pole for three-phase applications
• Voltage rating: 600V
• Configuration: Feed-Through design to support downstream feeders
• Part number: HJL36100U44X

Why choose the Square D HJL36100U44X feed-through circuit breaker

• The part number HJL36100U44X is the clearest reference for ensuring your replacement fits exactly where your current breaker resides. This isn’t a generic substitute — it’s a direct match for Square D installations that require a 100A, 3-pole, 600V feed-through unit.
• Designed for industrial and commercial panels, this 600V-rated breaker handles essential power distribution while offering dependable protection for connected equipment and circuits.
• The feed-through configuration simplifies upgrading or refurbishing panels by allowing continued feeders, reducing the need for additional components or adapters.
• By relying on the exact part number, you minimize the guesswork often associated with replacements, ensuring you stay within original specifications and protective characteristics.

Ideal use cases

• Maintenance or replacement in existing Square D panels that require a 100A, 3-pole, 600V feed-through breaker.
• Retrofits where downstream feeders must be continued through the breaker assembly without introducing separate distribution devices.
• Upgrades in commercial or light industrial settings where precise compatibility reduces downtime and confirms protection alignment with the panel’s design.

How this model compares and practical tips

Compared to generic breakers, the Square D HJL36100U44X is purpose-built for Square D panels, offering a straightforward path to compatibility through the established part number. This reduces trial-and-error sourcing and helps ensure the protective trip characteristics and electrical fit match your system’s requirements.

Practical tips for selecting and ordering

• Always verify fit and ratings before ordering. The notes for this model emphasize confirming compatibility with your panel’s specifications.
• Use the part number HJL36100U44X as the primary reference when coordinating with suppliers or catalog search tools.
• Plan for downstream feeder needs; the feed-through design supports clean, continued distribution within the same enclosure.

With the Square D HJL36100U44X Circuit Breaker, you gain a dependable, specification-aligned solution for maintenance, retrofit, and replacement projects. It’s engineered to meet the demands of modern electrical systems while providing a clear, exact-fit reference that simplifies procurement and installation.