Square D HGA36090UOYP 90A 3-Pole 600 V Circuit Breaker

Meet the Square D HGA36090UOYP—a rugged, reliable three-phase protection solution built for demanding industrial and commercial power systems. With a 90 A rating and three poles, this circuit breaker is purpose-built to safeguard multi‑phase circuits while delivering precise, dependable disconnection when faults occur. Designed for up to 600 V, it’s crafted to keep critical equipment like motors, pumps, conveyors, and HVAC systems running safely and efficiently.

Key reasons to choose the HGA36090UOYP

• Three-pole, 90 A protection—simultaneous disconnection of all three phases minimizes the risk of unbalanced currents, protecting equipment and wiring in three‑phase circuits.
• 600 V maximum rating—suitable for a wide range of commercial and industrial distribution applications where higher voltage protection is required.
• Exact part compatibility—part number HGA36090UOYP ensures you’re selecting the correct unit for systems designed around Square D’s HGA series, promoting reliable replacement and uptime.
• Rugged, trusted brand—Square D is known for durable construction and long service life in harsh electrical environments, helping minimize maintenance downtime.

Who this is for

• Facilities managers protecting three‑phase motor loads in light industrial settings.
• Electrical contractors wiring commercial buildings with 3‑phase distribution panels rated for up to 600 V.
• Maintenance teams seeking dependable, standards‑compliant circuit protection that stands up to routine switching and fault conditions.

Use cases and practical benefits

• Motor circuits for compressors, pumps, and conveyor systems—preventing damage from overloads and short circuits.
• HVAC and cooling systems where reliable three‑phase protection minimizes downtime during faults.
• Feeder protection in electrical panels that require a robust 3‑pole device capable of handling up to 600 V across phases.

Installation and compatibility tips

• Ensure your panel and external wiring are rated for 600 V and that the panel is designed to accept three‑pole, 90 A breakers from the Square D HGA family.
• Match the device rating to the connected load to maintain proper protection coordination and avoids nuisance trips.
• Keep a spare HGA36090UOYP on hand for quick replacement to minimize downtime during electrical maintenance or upgrades.

Specifications at a glance

• Current rating: 90 A
• Poles: 3
• Voltage rating: 600 V
• Part number: HGA36090UOYP
• Brand/series: Square D

Whether you're upgrading an existing distribution panel or stocking essential parts for reliable service in busy facilities, the Square D HGA36090UOYP delivers dependable three‑phase protection that helps keep systems safe, compliant, and productive.