Square D HDA36150URYP 150A 3-Pole 600 V Circuit Breaker

Square D HDA36150URYP 150A 3-Pole 600V Circuit Breaker is a purpose-built solution for protecting three-phase electrical systems in demanding commercial and industrial environments. With a 150-amp current rating, three poles, and a 600-volt maximum rating, this breaker delivers dependable, hard-working overcurrent protection for heavy-duty loads while simplifying panel layouts in Square D installations.

Part number: HDA36150URYP. Series: HDA. This unit is designed to integrate seamlessly with Square D panels that accept HDA series circuit breakers, offering reliable replacement or upgrade options for existing 3-Pole 600V feeders and motors.

Key specifications at a glance

• Current rating: 150 A
• Poles: 3 (three-phase protection)
• Voltage rating: 600 V
• Part number: HDA36150URYP
• Series: HDA

What problems does it solve?

For facilities running three-phase equipment, this breaker provides targeted protection for feeders, motors, and other high-demand loads. It helps prevent electrical damage from overloads and short circuits, reduces unplanned downtime, and supports safer, more reliable operation of machinery like pumps, conveyors, and industrial fans.

Ideal use cases

• Protect three-phase motors and feeders in manufacturing lines up to 150 A
• Serve as a main or branch-disconnect in commercial/industrial distribution panels
• Guard power feeds to heavy equipment in warehouses, processing plants, and utility rooms

Why choose this Square D breaker?

• Specifically matched for 3-phase, 600V applications: the 150A, 3-pole configuration is purpose-built for demanding industrial circuits.
• Reliable, brand-backed performance: built by Square D for compatibility and long-term service in compatible panels and enclosures.
• Streamlined replacement and maintenance: part number clarity (HDA36150URYP) helps ensure the right fit for service upgrades and routine maintenance.

Installation and care tips

Ensure your panel accepts HDA-series breakers and that the circuit requirements align with a 150 A, 3-pole, 600 V device. Follow local electrical codes and the panel manufacturer’s torque specifications during installation. Use this breaker for feeders and protection in 3-phase circuits where Square D compatibility is required, and replace only with identical or equivalently rated devices to maintain system protection and warranty continuity.