Square D HGL36150U31XAA 150A 3-Pole 600 V Circuit Breaker

Square D's HGL36150U31XAA is a robust 3-pole circuit breaker engineered for 3-phase electrical systems. With a 150-amp current rating and a 600-volt maximum, this device delivers reliable overcurrent protection for demanding commercial and light industrial applications, helping to safeguard equipment and minimize downtime.

Key specifications

• Part number: HGL36150U31XAA
• Current rating: 150 A
• Poles: 3
• Voltage rating: 600 V
• Type: Circuit Breaker (3-pole)
• Brand: Square D

Why this breaker stands out

• Three-pole design provides balanced protection across all three lines in a 3-phase distribution, reducing the risk of uneven fault currents.
• 600 V rating expands its applicability to higher-voltage panels and equipment common in commercial and light industrial environments.
• Designed for reliable integration with compatible Square D panels, ensuring proper fit, electrical contact, and predictable performance.
• Durable construction tailored for steady operation in demanding installations, helping to minimize nuisance trips and service interruptions.

Ideal use cases

• Three-phase motor control circuits for conveyors, pumps, and fans in manufacturing settings.
• Main feeders and branch circuits in commercial electrical distribution panels requiring 150 A protection.
• Any 3-phase power distribution where a 150 A, 3-pole, 600 V circuit breaker is appropriate.

Installation and compatibility tips

• Verify that your panel is designed to accept three-pole Square D breakers and supports up to 600 V systems.
• Match the current rating and pole configuration to your load requirements to ensure proper protection levels.
• Follow applicable electrical codes and manufacturer guidelines during installation, and have a qualified electrician perform connections and torque checks.