Square D HDA36110UA 110A 3-Pole 600 V Circuit Breaker

Square D's HDA36110UA represents a robust solution for protecting three-phase electrical systems in commercial and light industrial environments. This 110 A, 3-pole, 600 V circuit breaker is purpose-built to interrupt fault currents and shield feeders and branch circuits from overloads, helping to minimize downtime and equipment wear in demanding applications.

Why the HDA36110UA stands out

• Three-pole design for balanced control: Ideal for three-phase systems, ensuring consistent protection across all phases and preventing motor and equipment stress caused by imbalanced loads.
• 110 A current rating: Suitable for mid-to-large load feeders and circuit branches common in warehouses, manufacturing floors, and facility distribution layouts.
• 600 V voltage rating: Built to perform in higher-voltage distribution environments, aligning with commercial and industrial panel requirements.
• Part number consistency: The HDA36110UA designation provides clear compatibility within Square D’s trusted protection lineup, simplifying sourcing, maintenance, and replacements.
• Durable, mission-ready construction: Crafted to withstand the rigors of professional electrical installations, delivering dependable protection over time.

Who should consider this breaker

Electrical contractors, facilities managers, and panel builders who manage three-phase power in commercial facilities, light manufacturing, data centers, and large mechanical systems will appreciate the reliability and compatibility of the Square D HDA36110UA. If your distribution panel relies on a 600 V class breaker with three poles and a 110 A rating, this unit is a solid fit.

Practical use cases

• Protecting three-phase motors and conveyors in manufacturing lines where stable, balanced protection minimizes unscheduled downtime.
• Feeder protection for large HVAC systems, chillers, and pumps in commercial buildings.
• Panelboard modernization or replacement projects where matching the HDA series promises straightforward integration.

Installation and consideration notes

As a Square D component, the HDA36110UA is designed to integrate with compatible Square D panels and accessories. When planning installation, verify panel compatibility with three-pole, 600 V devices and ensure proper electrical clearances and safe torque practices per your site’s electrical standards. For best results, pair this breaker with the appropriate enclosure and labeling to maintain clear, compliant protection across your distribution system.

Choose the Square D HDA36110UA 110 A, 3-Pole, 600 V Circuit Breaker to deliver targeted, dependable protection for your three-phase electrical infrastructure, helping safeguard equipment, reduce fault-related downtime, and keep critical systems running smoothly.