Square D HGA36150SV 150A 3-Pole 600 V Circuit Breaker

The Square D HGA36150SV 150A 3-Pole 600 V Circuit Breaker is a reliable, high-capacity protective device designed for three-phase power systems. With a 150 amp current rating and 3 poles, it delivers precise overcurrent protection for demanding commercial and industrial applications operating up to 600 volts.

Key specifications

• Brand: Square D
• Part number: HGA36150SV
• Current rating: 150 A
• Poles: 3
• Voltage rating: 600 V

Why this model stands out

Designed for three-phase distribution, the HGA36150SV provides robust protection by quickly interrupting fault currents and isolating faulty circuits. The three-pole design ensures simultaneous disconnection of all live conductors, enhancing safety and reducing the risk of arc faults in 600 V systems. This combination of high current capacity and reliable tripping behavior makes it well-suited for panels that power motors, compressors, and other heavy-load equipment.

Ideal use cases

• Three-phase power distribution in commercial facilities that run up to 600 V
• Motor control circuits and feeders in light to medium industrial environments
• Replacement part for existing Square D installations requiring a 150 A, 3-pole, 600 V breaker

Practical installation and safety tips

Before installation, confirm that your panel is rated for 600 V operation and compatible with a 3-pole breaker of this size. Always follow local electrical codes and manufacturer guidelines for mounting, wiring, and torque specifications. When replacing an existing breaker, verify that the part number matches HGA36150SV to ensure proper fit and performance.