Square D HDA36150UDYP 150A 3-Pole 600 V Circuit Breaker

The Square D HDA36150UDYP 150A 3-Pole 600 V Circuit Breaker is engineered for demanding three-phase power systems where reliability and precise protection matter. Built to handle higher voltage distribution while safeguarding feeders and motors, this device offers robust protection across commercial and industrial environments.

• Current rating: 150 A
• Poles: 3
• Voltage rating: 600 V
• Part number: HDA36150UDYP
• Application: three-phase circuits in distribution panels and feeders

Why this model stands out is its combination of three-pole protection and a ready-for-duty design that fits Square D installations. It provides dependable interruption when overloads or faults appear, helping to protect wiring, equipment, and occupants while reducing downtime caused by electrical disturbances. The HDA series is known for durable construction and compatibility with compatible Square D panels, making replacement and upgrades straightforward in existing electrical architectures.

Ideal applications include:

• Three-phase feeders in commercial and light-industrial panels
• Motor control circuits in manufacturing lines and HVAC systems
• Power distribution points in data centers, warehouses, and large workshop environments

Designed for installers and facility engineers, this breaker integrates smoothly into Square D ecosystems. Use it to achieve clear, predictable protection coordination across all three phases up to 600 V. When selecting protection for your circuit, choose a device that matches the system’s ampacity, voltage, and panel compatibility—the HDA36150UDYP is built to align with these requirements for reliable, long-term service.

Compatibility and installation notes — verifies compatibility with Square D enclosures and panel boards that accept HDA-type devices, confirms a 3-pole configuration for three-phase circuits, and ensures the system operates within the 600 V maximum rating. For best results, pair this breaker with appropriate conductors, lugs, and enclosure provisions that meet local electrical codes and the specific Square D installation guidelines.

In short, the Square D HDA36150UDYP 150A 3-Pole 600 V Circuit Breaker delivers focused, dependable protection for three-phase power infrastructure, helping you keep critical equipment online and protected.