Square D HDA36090UH 90A 3-Pole 600 V Circuit Breaker

The Square D HDA36090UH is a robust three‑pole circuit breaker designed to protect three‑phase electrical systems with clarity and reliability. Rated at 90 amps and supporting up to 600 volts, this unit provides dependable overload and short‑circuit protection for demanding commercial or light industrial equipment. Built to align with Square D’s HDA series, it’s a precise match for panels and distributions that accept HDA‑style breakers, helping you maintain consistent performance across your power network.

• Current rating: 90 A
• Pole configuration: 3‑pole
• Voltage rating: 600 V
• Part number: HDA36090UH

Why choose this breaker? When you run multi‑phase equipment, balanced protection across all phases is essential. The 3‑pole design of the HDA36090UH ensures simultaneous interruption on all lines in the event of an overload or fault, helping to minimize damage and downtime. With a 90‑amp rating, it’s well suited for mid‑range motors, conveyors, and other three‑phase loads that demand dependable, coordinated protection without frequent nuisance trips.

Practical applications and use cases include:

• Protecting three‑phase motors and drive systems in manufacturing or packaging lines.
• Distributing power for commercial equipment racks and small MCCs (motor control centers).
• Serving as a reliable protection device in electrical panels that accept Square D HDA breakers.

Installation and compatibility notes (based on the product details provided) are straightforward: verify that your panel accepts HDA series breakers and that the system voltage aligns with the 600 V rating. This ensures proper coordination with upstream protection and safe, code‑compliant operation. The HDA36090UH is identified by its part number, making replacements and inventory management efficient in environments that stock Square D components.

In short, the Square D HDA36090UH delivers targeted, dependable protection for three‑phase circuits up to 90 A and 600 V, with a design that fits compatible Square D panels and distribution setups. If you’re safeguarding mid‑to‑high‑load three‑phase equipment, this 3‑pole breaker offers clear, practical protection without overcomplicating your power distribution.