Square D HGA36090USYP 90A 3-Pole 600 V Circuit Breaker

Introducing the Square D HGA36090USYP — a rugged 90 Amp, 3-pole circuit breaker designed for demanding 600 V three-phase systems. This high-performance unit delivers dependable overcurrent protection for feeders, motors, and critical loads in commercial and light industrial environments, helping keep your electrical distribution safe and up to code.

Why this breaker stands out

• Three-pole protection provides balanced, coordinated shutoff across all phases, simplifying wiring and ensuring reliable protection for three-phase circuits.
• 90 A rating suits medium-duty feeders and motor circuits, reducing nuisance trips while still delivering effective protection during overloads and faults.
• 600 V maximum rating makes it compatible with a wide range of industrial power distributions and machinery loads common in commercial facilities.
• Square D HGA-series design emphasizes durability and consistent trip performance in challenging environments, extending service life in panelboards and distribution panels.
• UL-listed safety and compliance support reliable installation practices and code-conforming protection for your panel assemblies.

Practical use cases

• Protect three-phase feeders feeding motor control centers, conveyors, and HVAC equipment in manufacturing or data-center environments.
• Upgrade or replace aging protection in commercial panelboards where a 90 A, 3-pole, 600 V solution is required.
• Integrate into new builds or retrofits where a compact, robust 3-phase breaker is needed to maintain clean power distribution.

What problems it solves

• Prevents damage from overloads and short circuits by interrupting fault current quickly and reliably across all three phases.
• Reduces downtime by providing predictable, consistent trip characteristics for motors and other heavy loads.
• Supports safer, code-compliant panel installations with a trusted Square D performance profile.

Tips for best results

• Confirm panel compatibility: this unit is designed for Square D installations and should be verified against your panel’s labeling for frame and trip unit compatibility.
• Ensure proper installation practices: have a licensed electrician perform the wiring, follow torque specifications, and adhere to local electrical codes.
• Keep on hand as a replacement part: storing a compatible 90 A, 3-pole, 600 V breaker can minimize downtime during maintenance or upgrades.

The Square D HGA36090USYP combines precise three-phase protection with durable construction and industry-standard ratings, delivering a focused, reliable solution for protecting important loads in 600 V distribution systems. Whether you're upgrading a panel, commissioning new equipment, or standardizing protection across multiple feeders, this 90 A, 3-pole breaker provides clear advantages over generic single-pole options and helps keep your electrical infrastructure safe and efficient.