Square D HGA36150SJ 150A 3-Pole 600 V Circuit Breaker

The Square D HGA36150SJ is a robust 150 A circuit breaker designed for three-phase power distribution, delivering reliable protection for systems operating up to 600 V. Built to fit Square D panels and enclosures, this 3-pole unit ensures synchronized disconnection across all phases, helping to minimize fault risk and equipment damage in demanding electrical environments.

• Current rating: 150 A
• Poles: 3
• Voltage rating: 600 V
• Part number: HGA36150SJ
• Brand: Square D
• Configuration: 3-pole for three-phase circuits

Who this is for: facilities with three-phase motors, pumps, or heavy feeders that require dependable interruption at 150 A. Ideal for industrial panels, commercial machinery rooms, and HVAC or processing lines where up to 600 V systems demand solid, real-world protection without compromising on space or compatibility.

Why it matters: a dedicated 3-pole breaker like the HGA36150SJ protects wiring and connected equipment from overloads and short circuits while enabling a clean, simultaneous shutoff of all phases. With a 150 A rating, it accommodates substantial motor starts and sustained loads while maintaining safe, predictable operation in everyday service.

Practical considerations and tips: - Ensure the panel or enclosure is designed to accept a 3-pole, 600 V device of this rating. - Use per-code wiring practices and follow manufacturer torque specifications for secure installation. - This model serves as a precise replacement or upgrade path for existing Square D configurations, helping maintain consistency across your electrical infrastructure.

Equip your three-phase distribution with the Square D HGA36150SJ 150A 3-Pole 600V Circuit Breaker to safeguard equipment, reduce downtime, and keep your electrical system performing reliably under demanding loads.