Square D HLA36100UH 100A 3-Pole 600 V Circuit Breaker

Introducing the Square D HLA36100UH 100A 3-Pole 600 V Circuit Breaker, a purpose-built protective device engineered to keep three-phase electrical systems safe in demanding commercial and industrial environments. With a 100 A rating and a three-pole configuration, this breaker is designed to interrupt fault currents across all three phases, helping prevent equipment damage and downtime.

Why this 3-Pole breaker stands out

• Three-pole protection ensures synchronized interruption across all phases, reducing the risk of phase imbalances that can damage motors and power circuits.
• 100 A current rating suits mid-to-high load circuits common in motor control centers, distribution panels, and large equipment feeds.
• 600 V voltage rating makes it a solid choice for industrial and commercial power distribution where higher voltage operation is required.
• Part Number clarity – HLA36100UH provides a precise, compatible component that fits standard Square D panel configurations, ensuring reliable upgrade or replacement in existing enclosures.
• Durable, easy replacement design simplifies maintenance in busy electrical rooms, reducing downtime when service is needed.

Ideal use cases

• Three-phase motor circuits in manufacturing, HVAC, or processing facilities
• Main feeders or sub-feed protection in commercial electrical rooms and panel boards
• Replacement or upgrade within Square D panel systems to maintain consistent protection across your distribution network

How it protects your system

By rapidly disconnecting circuits during overloads or short circuits, this circuit breaker minimizes conductor heating, protects wiring insulation, and preserves critical equipment uptime. Its three-pole design ensures that all phases are safeguarded simultaneously, which is essential for balanced operation of motors and load banks in three-phase systems.

Specification snapshot

• Current rating: 100 A
• Poles: 3
• Voltage rating: 600 V
• Part number: HLA36100UH
• Product type: Circuit Breaker

Practical tips for installation and maintenance

• Ensure the power is fully de-energized before any replacement or installation work.
• Use the breaker within its rated voltage and current specifications to preserve protection integrity.
• Secure all connections with the manufacturer-recommended torque and inspect lug interfaces periodically for signs of wear or looseness.
• When integrating into an existing Square D or compatible panel, verify compatibility to maintain proper coordination with adjacent protective devices.

Equip your electrical distribution with the Square D HLA36100UH to deliver dependable, three-phase protection at 600 V. It’s a precise, compatible choice for safeguarding people, equipment, and processes while keeping downtime to a minimum.