Square D HLA36100US 100A 3-Pole 600 V Circuit Breaker

Meet the Square D HLA36100US 100A 3-Pole 600 V Circuit Breaker—the rugged, three-phase protection your commercial and industrial electrical systems rely on. With a 100-amp rating and a 600-volt maximum, this breaker is built to safeguard feeders and motors in demanding environments while delivering dependable interruption when faults occur.

• Three-pole design protects all three phases in 3‑phase circuits, ensuring synchronized disconnection for safer shutdowns and reduced arc-flash risk.
• 100 A current rating handles substantial loads typical of motors, fans, pumps, and feeders without frequent nuisance trips in everyday operations.
• 600 V voltage rating sized for industrial distribution networks, giving you a robust safety margin across diverse equipment.
• Part number HLA36100US guarantees exact fit and compatibility with Square D panels and compatible enclosures, simplifying replacement and stocking decisions.
• Durable construction designed for the rigors of commercial environments, providing reliable protection across the life of the installation.

Ideal use cases

• Protecting 3‑phase motor circuits in manufacturing lines, HVAC systems, or processing equipment.
• Feeder protection in commercial electrical distribution panels and industrial control panels.
• Replacement or upgrade in existing Square D installations requiring a 3-pole, 600V protective device.

Why this matters

• With a 3-pole design, you ensure comprehensive disconnection of all live conductors during a fault, enhancing safety and equipment protection.
• Exact compatibility with Square D systems means quicker installation, reliable coordination with upstream devices, and fewer integration headaches.
• Designed for high-demand environments, this breaker supports long-term dependability for critical loads like motors and heavy feeders.

Installation and compatibility tips

• Use this breaker in compatible Square D panels and enclosures designed for 3-pole, 600 V protection. Verify panel family and bus compatibility before replacement.
• Follow standard electrical safety practices: shut down power, use proper tooling, and torque connections to manufacturer specifications for reliable performance.
• Label clearly as a 3-pole 100A 600V protection device to aid future servicing and inspections.