Square D HLA36150SH 150A 3-Pole 600 V Circuit Breaker

The Square D HLA36150SH 150A 3-Pole 600 V Circuit Breaker is purpose-built to shield your three-phase power systems from overloads and fault currents. With a solid 150 A rating across three poles and a 600 V maximum, this breaker is engineered for reliable protection in demanding commercial and light industrial panels.

Designed for serious electrical deployments, this 3-pole unit smoothly fits into standard Square D installations, delivering dependable overcurrent protection for feeders and branch circuits in three-phase networks. Its robust construction is made to endure the rigors of busy electrical environments where uptime matters and quick, predictable tripping can minimize equipment damage and downtime.

Key specifications and what they mean for your setup

• Part Number: HLA36150SH
• Current rating: 150 A
• Poles: 3
• Voltage rating: 600 V

Why this model stands out

• Clear fit for three-phase systems: Specifically designed to protect 3-phase feeders and equipment, from motors to compressors, in commercial and light industrial settings.
• Precise protection for demanding loads: The 150 A rating provides reliable current limiting for heavy-duty circuits, helping to prevent insulation damage and equipment wear.
• Brand confidence and compatibility: Built by Square D to complement existing panels and enclosures that accept standard 3-pole, 600 V breakers, simplifying replacement and upgrades.
• Durable, field-ready design: Engineered for consistent performance in environments where electrical reliability is critical.

Practical use cases

• Protect three-phase motors in manufacturing lines, conveyors, and material handling systems.
• Provide feeder protection for HVAC and processing equipment in commercial facilities.
• Serve as a reliable main or sub-feed protective device in electrical distribution panels.

Installation and care tips

• Ensure the panel and enclosure are compatible with a 3-pole, 600 V breaker of this type before installation.
• Follow standard safety practices: power down, verify absence of voltage, and secure the breaker with the correct mounting and torque per your panel’s guidelines.
• Inspect connections for tightness during periodic maintenance to maintain optimal protection performance.

If you’re upgrading a 3-phase distribution or stocking spare parts for critical equipment, the Square D HLA36150SH 150A 3-Pole 600 V Circuit Breaker delivers trusted protection with straightforward integration into existing Square D systems. Add this reliable component to your panel lineup and safeguard your three-phase infrastructure today.