Square D HU361 - 30A, 600V, 3-Pole, Safety Switch

The Square D HU361 is a rugged, three-pole safety switch engineered for industrial and commercial environments where safe electrical isolation is non-negotiable. With a 30A rating at up to 600V, it delivers dependable disconnection under load and is designed to support robust lockout/tagout procedures, helping teams stay safe during maintenance and service.

Why the HU361 stands out

• 3-Pole design for complete phase isolation—disengages all three phases at once to minimize arc risk and ensure a clean, safe shutdown of three-phase equipment.
• 600V maximum rating—built to integrate with industrial power systems, offering reliable performance across demanding applications.
• 30A current capacity—well-suited for a range of mid-size motor loads and equipment without compromising safety or control.
• Long-term durability—engineered to withstand demanding environments, delivering consistent performance over time.
• Lockout/Tagout compatibility—designed to support standard safety procedures, helping facilities meet compliance and protect maintenance personnel.
• Reliable disconnection under load—optimized to interrupt power safely without compromising system integrity.
• Trusted brand and model—Square D HU361 combines a proven safety-switch platform with industry familiarity for easier integration and service.

Technical specifications at a glance

• Amperage Rating: 30A
• Voltage Rating: 600V
• Number of Poles: 3-Pole
• Product Type: Safety Switch
• Brand: Square D
• Model: HU361

Ideal uses and practical scenarios

• Isolating three-phase motors and equipment in manufacturing lines and processing plants.
• Providing a safe disconnect point in electrical panels and distribution setups where service and maintenance require lockout/tagout.
• Serving as a dependable isolation switch for commercial facilities that operate equipment at voltages up to 600V and currents up to 30A.
• Supporting quick, safe shutdowns during fault conditions or routine maintenance to minimize downtime and enhance operator safety.

How this safety switch can fit your operation

For facilities that need reliable electrical isolation, the HU361 offers a straightforward, durable solution that aligns with safety best practices. It provides full three-phase disconnection, ties into standard lockout/tagout workflows, and delivers dependable performance when it matters most—during planned maintenance and unexpected outages alike. If you’re upgrading control equipment, refurbishing a panel, or establishing compliant shutdown procedures, the HU361 delivers clarity, safety, and long-term value.

Why choose Square D HU361 over alternatives

• Proven three-pole design ensures complete phase isolation, reducing the risk of partial shutdowns.
• Industrial-grade rating (600V, 30A) aligns with common mid-range power distribution needs while providing a clear path to uptime and safety compliance.
• Lockout/tagout readiness supports formal safety programs and helps prevent accidental energization during maintenance.
• Long-term durability reduces maintenance cycles and replacement costs in demanding environments.