Square D HJA36150SKYP 150A 3-Pole 600 V Circuit Breaker

Meet the Square D HJA36150SKYP 150A 3-Pole 600 V Circuit Breaker — a rugged, reliable protector for demanding 3‑phase electrical systems. Built by Square D, this model is designed to interrupt power quickly and safely on 600 V class circuits, helping to shield motors, feeders, and critical equipment from overloads and faults.

Key specs at a glance

• Current rating: 150 A
• Poles: 3
• Voltage rating: 600 V
• Part number: HJA36150SKYP
• Brand: Square D

Why this model matters

• Three-pole design safeguards all phases in 600 V systems, providing balanced protection for three-phase loads.
• Robust construction tailored for industrial and commercial environments, delivering dependable performance in daily operation.
• Precise part identification (HJA36150SKYP) simplifies ordering, inventory, and replacement within Square D panels and ecosystems.

Typical use cases

• Protecting large three-phase motors, compressors, and pumps in manufacturing, HVAC, and processing facilities.
• Feeding high-ampacity circuits from distribution panels in commercial buildings, with rapid fault interruption to minimize downtime.
• Retrofits or upgrades where a dedicated 150 A, 3-pole protection solution is required for 600 V service.

Practical setup tips

• Ensure compatibility with your Square D panel and mounting arrangement before installation.
• Follow standard electrical safety practices during replacement or retrofit to maintain system integrity.
• Incorporate this breaker into your protective coordination plan to help ensure selective tripping and improved reliability.

Secure reliable 3‑phase protection with the Square D HJA36150SKYP 150A 3-Pole 600 V Circuit Breaker. Add it to your cart to maintain safe, efficient operation of your 600 V distribution and motor circuits.