Square D HJL36030SN 30A 3-Pole 600 V Circuit Breaker

Meet the Square D HJL36030SN 30A 3-Pole 600 V Circuit Breaker — a genuine OEM protection device designed to safeguard three-phase power in commercial and light industrial settings. With Part Number HJL36030SN, this breaker delivers reliable overcurrent protection for circuits up to 30 amps, while accommodating three poles for balanced, safer three-phase operation.

• Current rating: 30 A
• Poles: 3 (three-pole configuration for 3-phase systems)
• Voltage rating: 600 V
• Part number: HJL36030SN
• Brand: Square D (Schneider Electric) — compatible with Square D panels and the HJL family

Why this three-pole breaker stands out

In any three-phase installation, reliable protection against overloads and short circuits is essential. The Square D HJL36030SN is built to interrupt fault currents promptly, helping to prevent damage to motors, drives, and heavy loads while maintaining system uptime. Its three-pole design ensures coordinated protection across all phases, reducing the risk of phase imbalance and unexpected equipment shutdowns.

Ideal use cases

• Three-phase motor circuits in manufacturing equipment, HVAC drives, and conveyor systems
• Panelboard or distribution feeder protection in commercial buildings
• Replacement for worn or failed HJL-series breakers in compatible Square D installations

Compatibility and installation tips

Choose the Square D HJL36030SN when your system requires a genuine, OEM 30 A, 3-pole, 600 V solution. Verify that your panel or load center accepts HJL-type breakers and that the voltage and phase configuration match your installation. When replacing an existing breaker, ensure the mounting style and bus connection align with Square D specifications to maintain proper contact and protection continuity.

What you gain with this breaker

• Trusted protection from a brand with a long-standing track record in electrical safety
• Clear compatibility with Square D panels and the HJL-series family for straightforward replacement
• Explicit specifications that align with typical three-phase applications up to 600 V
• Durable construction designed for dependable performance in demanding environments