Square D HGA36150UDYP 150A 3-Pole 600 V Circuit Breaker

Square D HGA36150UDYP is a rugged 150 A, 3-pole circuit breaker designed to guard three-phase electrical systems against overloads and faults. With a 600 V maximum rating, it’s built for industrial and commercial environments where dependable protection is essential.

Core specifications

• Part Number: HGA36150UDYP
• Current rating: 150 A
• Poles: 3
• Voltage rating: 600 V

What makes this breaker stand out

• Three-pole design provides unified protection for all three phases in a single device, simplifying panel layouts and improving three-phase fault coordination.
• Specifically engineered to integrate with Square D panels and enclosures, ensuring reliable fit and straightforward replacement in existing installations.
• Robust construction geared for industrial duty, with durable labeling and clear visibility to support maintenance, inspection, and compliance checks.

Ideal use cases

• Main feeders in manufacturing facilities where three-phase motors and equipment operate at high load.
• Industrial control rooms and switchgear assemblies requiring dependable 3-phase overcurrent protection.
• Large commercial HVAC, pumping, or processing systems that demand reliable protection at up to 600 V.

Installation and care tips

• Verify that your panel and conductors are rated for 600 V and compatible with a 3-pole protection device.
• Have a licensed electrician perform the installation, ensuring proper torque on terminals and secure mounting within the panel.
• Keep the device labeled and documented with your electrical drawings for efficient future maintenance or replacement.

Choosing Square D for three-phase protection means prioritizing consistent performance and compatibility with a broad family of panels and accessories. The HGA36150UDYP delivers reliable 150 A, 3-pole, 600 V protection for critical feeders and motors, helping safeguard equipment, reduce downtime, and support long-term electrical system reliability.