Square D HGA36150U31XAABCSDYP 150A 3-Pole 600 V Circuit Breaker

Meet the Square D HGA36150U31XAABCSDYP, a rugged 150 A, 3-pole, 600 V circuit breaker built to safeguard demanding three-phase electrical systems. Designed for reliable protection in commercial and industrial applications, this unit pairs a proven Square D engineering lineage with a precise part number that ensures seamless replacement and compatibility in compatible panels.

• Current rating: 150 A — provides scalable protection for high-demand feeders and equipment.
• Poles: 3 — ideal for three-phase circuits common in motors, compressors, and multi-phase distribution.
• Voltage rating: 600 V — suitable for mid- to high-voltage distribution environments.
• Part number: HGA36150U31XAABCSDYP — precise identification to ensure correct fit and replacements within your Square D ecosystem.

Why this breaker stands out

What makes this device compelling is its combination of robust three-phase protection and straightforward integration within existing Square D panel configurations. The 3-pole design simplifies wiring and coordination across three live conductors, helping you maintain a clean, organized electrical setup. With its 150 A rating, it’s built to handle substantial load branches without sacrificing quick, reliable tripping when faults occur.

Ideal use scenarios

• Protecting three-phase feeders feeding industrial equipment, HVAC systems, or manufacturing line drives.
• Serving as a main or sub-feed breaker in commercial panels where 150 A protection is required.
• Replacement in existing Square D installations where the HGA series is specified, ensuring consistent performance and compatibility.

Practical tips for installation and ongoing reliability

• Verify panel compatibility and refer to your electrical diagram to confirm the correct part family before replacement.
• Keep a spare on hand in maintenance inventories to minimize downtime if a trip occurs.
• Install only in properly rated enclosures and follow all applicable electrical codes during setup and servicing.
• Document the part number (HGA36150U31XAABCSDYP) in your asset management records for future maintenance and replacements.