Square D HDA36070UO 70A 3-Pole 600 V Circuit Breaker

Meet the Square D HDA36070UO, a purpose-built 70A, 3-pole circuit breaker designed for demanding 3‑phase electrical systems up to 600 V. Crafted for reliability in commercial and light industrial environments, this breaker provides precise overcurrent protection to safeguard motors, conveyors, pumps, and other heavy loads from damage due to overloads or short circuits.

Why this model stands out

• Three‑pole protection for balanced 3‑phase circuits: The 3-pole design ensures all phases trip together, preventing unbalanced loads that can harm equipment or reduce system efficiency.
• 70 A continuous rating: Specifically matched for mid‑size equipment runs where steady protection is essential without frequent nuisance trips.
• 600 V maximum system voltage: Ready for higher‑voltage commercial and industrial distribution, providing a margin for safe operation in a variety of installations.
• Part number HDA36070UO in the Square D family: Clear compatibility within Square D panels and configurations, making replacement or expansion straightforward and reliable.
• Industry‑standard protection you can trust: Built to meet the rigorous expectations of commercial electrical systems, helping you maintain uptime and protect critical loads.

Ideal applications

This breaker is well-suited for 3‑phase service equipment in environments such as HVAC systems, industrial conveyors, large pumps, machine tooling, and other equipment that operates on 3‑phase power and requires robust, dependable overcurrent protection at up to 600 V.

Specs at a glance

• Current rating: 70 A
• Poles: 3
• Voltage rating: 600 V
• Part number: HDA36070UO
• Brand: Square D

When you choose the Square D HDA36070UO, you’re selecting a proven solution that aligns with your existing Square D ecosystem while delivering dependable protection for your critical 3‑phase loads. Ensure your panel configuration supports this 3‑pole, 70 A, 600 V device to optimize safety, performance, and longevity of your electrical system.