Square D | HJL36100M38X | Circuit Breaker | 100A | 3-Pole | 600V

Meet the Square D HJL36100M38X Circuit Breaker — a dependable 100A, 3-Pole, 600V protective device designed for demanding electrical environments. Whether you’re performing routine maintenance, upgrading a legacy panel, or replacing a failed breaker, this unit delivers the exact specifications your system requires to keep circuits safe and downtime to a minimum.

Why this matters: exact-part-number compatibility reduces the risk of fit issues and ensures your panel labeling and protection remain accurate. The HJL36100M38X is the most precise reference for matching form factor, operating characteristics, and electrical ratings in Square D installations.

Core specifications

• Amperage: 100 A
• Poles: 3-Pole (suitable for 3-phase systems)
• Voltage rating: 600 V

Who should consider this breaker

This 3-pole, 100A, 600V circuit breaker is ideal for industrial panels, motor control centers, and commercial electrical setups that require robust protection for three-phase circuits. It’s especially well-suited for retrofit projects when upgrading or replacing aging protection devices while preserving existing panel geometry and compatibility.

Installation, fit, and best practices

Before ordering, confirm fit and ratings to ensure compatibility with your panel and bus configuration. The part number HJL36100M38X is the most reliable reference for matching equipment. When installing, follow your panel manufacturer’s guidelines, ensure the breaker seats firmly in the enclosure, and verify proper connection to maintain reliable protection.

Practical considerations

Keep a spare on hand for planned maintenance and rapid replacements to minimize downtime. Store breakers in their original packaging and label circuits clearly to streamline future servicing and inspections.