Square D | HRL36150U31X | Circuit Breaker | 150A | 3-Pole | 600V

Square D HRL36150U31X is a high-capacity three-pole circuit breaker engineered for 600V systems. With a 150A rating, this unit delivers reliable overcurrent protection for large, three-phase circuits while enabling safe, simple maintenance, retrofit, and replacement projects. When your goal is to preserve uptime and protect valuable equipment, this breaker provides a precise, standards-aligned solution.

Key specifications

• Amperage: 150 A
• Poles: 3-Pole
• Voltage rating: 600V
• Brand: Square D

Notes: Confirm fit and ratings before ordering. Part number is the best reference for compatibility.

Ideal use scenarios

• Maintenance planning for existing Square D panels where a precise 150A, 3-pole, 600V breaker is required
• Retrofit projects to upgrade or replace aging protection devices in industrial or commercial electricity delivery systems
• Replacement of failed breakers in three-phase electrical distribution where exact specifications are needed to maintain panel integrity

Why this HRL36150U31X matters for your electrical system

Choosing the correct part number is essential for compatibility with your panel and upstream equipment. The HRL36150U31X model is specifically matched to three-phase 600V circuits, ensuring proper trip characteristics, mounting alignment, and electrical clearance. This reduces the risk of performance issues or nuisance trips that can occur when substituting generic parts.

Compatibility and ordering tips

Use the part number HRL36150U31X as the primary reference when verifying compatibility with your panel labeling and manufacturer documentation. If in doubt, cross-check the panel model, the bus configuration, and any recent revisions to your electrical distribution setup before purchasing.

Installation and safety considerations

• Ensure power is fully isolated and de-energized before any replacement work
• Follow all applicable electrical codes and safety practices during handling and installation
• If you’re installing in a 600V system, use appropriate PPE and tools rated for high-voltage work

Ready for a precise, compatible upgrade or replacement in your 600V, three-phase distribution? The Square D HRL36150U31X delivers the protection you rely on, backed by a part-number–driven fit that supports dependable, long-term service.