Square D HDA36080UN 80A 3-Pole 600 V Circuit Breaker

Meet the Square D HDA36080UN 80A 3-Pole 600 V Circuit Breaker — a reliable, three‑pole protection device engineered for three-phase power systems up to 600 V. With an 80 A rating, it safeguards feeders and equipment from overloads and short circuits, helping minimize downtime and protect wiring in demanding commercial and industrial environments.

Key specifications at a glance

• Current rating: 80 A
• Poles: 3
• Voltage rating: 600 V
• Part number: HDA36080UN

Why this breaker fits your system

This 3‑pole design is purpose-built for protecting three‑phase circuits, providing coordinated interruption across all lines in the event of an overload or short circuit. The 600 V rating makes it suitable for industrial and commercial electrical distributions, while the 80 A capacity covers mid‑range feeders and equipment without unnecessary downtime.

Ideal use cases

• Protecting feeders and motors in 3‑phase distribution panels within manufacturing, processing, or large workshop environments
• Serving as a replacement or upgrade in existing Square D installations that require a compatible 3‑pole, 80 A, 600 V solution
• Provisioning 3‑phase circuits in commercial electrical rooms where reliable, straightforward protection is essential

What sets it apart

• Direct alignment with Square D ecosystems: Part number HDA36080UN is designed for seamless integration with compatible Square D panels and distribution setups
• Clear 3‑phase protection: The three-pole configuration ensures comprehensive interruption across all lines, reducing risk for unbalanced faults
• Focused performance for mid‑range loads: 80 A rating provides robust protection for common industrial feeders and equipment without oversizing the device

Installation and practical tips

For safe and effective use, ensure the breaker is compatible with your panel and that the load requirements align with the 80 A rating. Follow standard electrical safety practices and the manufacturer’s installation guidelines. If you’re upgrading from a different rating or pole count, verify the panel’s compatibility and synchronization with other protective devices to maintain proper system protection.

Maintenance and care

Periodically inspect connections for tightness and signs of wear, and confirm the breaker remains properly seated in its slot. Replace any unit that shows physical damage or degraded performance to maintain reliable overcurrent protection.

Choose the Square D HDA36080UN when you need a dependable, 3‑pole, 80 A, 600 V circuit breaker that aligns with established Square D panels and supports robust 3‑phase protection in demanding environments.