Square D HJA36070SLYP 70A 3-Pole 600 V Circuit Breaker

Meet the Square D HJA36070SLYP—a purpose-built circuit breaker engineered for dependable protection in three‑phase power systems. With a 70 A current rating, three poles, and a 600 V maximum voltage, this unit is designed to interrupt fault currents quickly and safely, safeguarding feeders, motors, and other critical loads in demanding industrial and commercial environments.

Why this breaker stands out

• Three-pole protection for balanced three-phase systems: Each of the three hot legs is simultaneously monitored and interrupted, ensuring coordinated protection across the entire circuit.
• Robust 600 V rating: Built to handle higher-voltage distribution scenarios common in commercial and industrial installations, providing reliable shutdown under fault conditions.
• Exact 70 A protection: Precisely limits current to prevent damage while avoiding nuisance trips in everyday operation.
• Brand‑ecosystem compatibility: Part of Square D’s trusted lineup, designed for use with compatible panels and gear to maintain a cohesive, maintenance-friendly electrical system.
• Solid, durable construction for demanding environments: Engineered to endure industrial vibration, temperature variations, and routine switching in service applications.

Ideal use cases

Best suited for three‑phase distribution networks in commercial buildings, industrial facilities, and equipment rooms where reliable motor protection and feeder safety are paramount. Use it to guard three‑phase motors, compressors, conveyors, pumps, and other critical loads that require synchronized disconnect on fault events. It’s a practical replacement or retrofit option when upgrading older protection schemes to a modern, reliable Square D solution.

Specs at a glance

• Part number: HJA36070SLYP
• Current rating: 70 A
• Poles: 3
• Voltage rating: 600 V
• Brand: Square D

To maximize safety and reliability, confirm that your panel and wiring setup are compatible with a 600 V three‑pole protective device and follow all applicable electrical codes during installation. The HJA36070SLYP delivers dependable trip performance and straightforward replacement in a familiar Square D configuration, helping you maintain continuous, protected power for essential equipment and systems.