Square D HGA36090UH 90A 3-Pole 600 V Circuit Breaker

Meet the Square D HGA36090UH 90A 3-Pole 600 V Circuit Breaker — a purpose-built protector for three-phase power, designed for demanding commercial and light-industrial installations. This breaker delivers reliable protection for feeders and equipment, helping you prevent damage from overloads and faults while minimizing downtime.

• Current rating: 90 A
• Poles: 3
• Voltage rating: 600 V
• Part number: HGA36090UH
• Application: Protects three-phase circuits and equipment in distribution panels

Why this matters in real-world setups

• Three-phase protection for balanced loads: The 3-pole configuration is ideal for three-phase systems, ensuring coordinated interruption across all phases to guard motors, drives, and other three-phase equipment.
• Higher voltage capability: With a 600 V rating, it suits a wide range of industrial distribution networks and commercial applications that exceed standard residential voltages.
• Reliable Square D construction: Built for long-term service in panel setups that support HGA-series breakers, offering consistent performance when it matters most.
• Precise replacement option: The HGA36090UH is a direct-fit component for compatible Square D panels, simplifying maintenance and reducing downtime during upgrades or replacements.

Ideal use cases

• Three-phase feeders in manufacturing lines, machine controls, and process equipment
• Data centers and server rooms with distributed power networks
• Large commercial HVAC systems, pumps, and cooling equipment
• Warehouse lighting and power distribution where reliable protection is critical

Practical notes for installation and operation

• Ensure you are pairing the HGA36090UH with a compatible Square D panel that accepts HGA-series breakers.
• Follow local electrical codes and the panel’s labeling when mounting and wiring; verify conductor sizing matches the 90 A protection level.
• Use as part of a well-planned overcurrent protection strategy to safeguard motors, transformers, and other three-phase equipment from overload and fault currents.

Choose the Square D HGA36090UH 90A 3-Pole 600 V Circuit Breaker for a focused, reliable solution that delivers targeted protection for your three-phase systems, supports efficient maintenance, and helps keep critical equipment up and running.