Square D HGA36090SD 90A 3-Pole 600 V Circuit Breaker

Explore robust three‑phase protection with the Square D HGA36090SD – a precise, reliable circuit breaker tailored for demanding electrical systems. With a 90 A rating across three poles and a 600 V voltage capacity, this unit is designed to safeguard larger, multi‑phase circuits found in industrial and commercial environments. Part Number HGA36090SD is your clear, compatible replacement for compatible Square D installations.

• Current rating: 90 A
• Poles: 3 (three‑pole design for complete phase protection)
• Voltage rating: up to 600 V
• Part number: HGA36090SD
• Brand: Square D (Schneider Electric)

Why a 3‑pole, 90 A, 600 V breaker matters: the 3‑pole configuration ensures all three phases trip together, preventing phase imbalances that can damage motors and equipment. The 90 A rating is ideal for protecting feeders, large motors, and other heavy‑duty loads commonly found in manufacturing, HVAC systems, and distribution panels—without the nuisance trips you might see from undersized protection.

Use cases and scenarios:

• Protect three‑phase motor circuits powering pumps, conveyors, compressors, and machinery in production lines.
• Secure large feeders and distribution runs in commercial or light industrial panelboards.
• Serve as a reliable main or branch circuit protector in systems where up to 90 A per phase is required.

Practical considerations for choosing this model: if your installation calls for a 90 A, 3‑pole solution capable of handling 600 V systems, the Square D HGA36090SD provides a direct, compatible fit that aligns with established Square D infrastructure. Verify that your panel or distribution setup supports this HGA series configuration and that the circuit loads stay within the 90 A limit to maintain optimal protection and reliability.