Square D HDA36150SJYP 150A 3-Pole 600 V Circuit Breaker

The Square D HDA36150SJYP 150A 3-Pole 600V Circuit Breaker is engineered to protect three-phase electrical systems with precision and reliability. With a 150 amp current rating and a 3-pole design, this breaker guards your circuits against overloads while accommodating up to 600 volts across the three conductors. Part of Square D’s trusted lineup, it’s a dependable choice for demanding commercial and industrial environments.

Key specifications

• Part Number: HDA36150SJYP
• Current Rating: 150 A
• Pole Configuration: 3-Pole
• Voltage Rating: 600 V

Why this 3-Pole 600V breaker stands out

Three-pole protection ensures all live phases are monitored and tripped together during overcurrent events, reducing the risk of partial faults that could compromise connected equipment. Designed for use in three-phase systems, this breaker provides consistent protection across motor drives, pumps, conveyors, and other industrial loads that rely on balanced phase protection.

Ideal applications

• Three-phase motor circuits and feeders in manufacturing or processing facilities
• Commercial distribution panels requiring reliable overcurrent protection up to 600 V
• Replacement in compatible Square D panelboards and switchgear where a 150 A, 3-pole, 600 V solution is needed

Practical insights for installation and use

Match the circuit’s load requirements to the 150 A rating to ensure optimal protection without nuisance tripping. Since this is a 3-pole device, it is best suited for three-phase systems where balanced protection across all phases is essential. When integrating into existing Square D infrastructure, reference the part number HDA36150SJYP to confirm compatibility with your current panel setup and distribution architecture.