Square D HDA36080UA 80A 3-Pole 600 V Circuit Breaker

Square D HDA36080UA 80A 3-Pole 600 V Circuit Breaker delivers reliable three-phase overcurrent protection for commercial and light-industrial power systems. This 80-amp unit is engineered to interrupt fault currents in circuits up to 600 volts, helping protect motors, feeders, and control equipment from damage and downtime.

• Part Number: HDA36080UA
• Brand: Square D
• Current Rating: 80 A
• Poles: 3
• Voltage Rating: 600 V

This model is part of Square D’s HDA family, designed to integrate smoothly with Square D panels and distribution gear. The three-pole configuration is essential for balanced three-phase protection, ensuring coordinated tripping across all phases and reducing the risk of voltage imbalances in your system.

Ideal use cases include protecting three-phase motor circuits, large lighting and HVAC feeds, and other commercial or light-industrial loads that run on three-phase power. If you’re replacing a failing breaker in an existing Square D installation or specifying a compatible device for a new panel, the HDA36080UA provides a precise fit and predictable performance that aligns with your system’s protection goals.

Key benefits at a glance:

• Precise three-phase overcurrent protection up to 600 V for reliable system safety
• Clear alignment with Square D panels and control gear, reducing installation guesswork
• Dedicated 80 A rating offers scalable protection for mid-range commercial and light-industrial loads
• Built to handle routine fault conditions in distribution and motor feeder circuits, helping minimize downtime

Practical tips for deployment:

• Match this breaker to compatible Square D panels to ensure proper trip characteristics and labeling
• Verify your circuit’s three-phase load and ensure the 600 V rating aligns with your distribution environment
• Document the Part Number (HDA36080UA) in your maintenance logs for easy future replacements