Square D HU364 - 200A, 600V, 3-Pole, Fused Disconnect Switch

When safety and uptime matter most, the Square D HU364 200A, 600V Fused Disconnect Switch delivers dependable electrical isolation for demanding industrial and commercial environments. This 3-pole disconnect is engineered to interrupt power cleanly, even under load, safeguarding maintenance crews and critical equipment while supporting essential lockout/tagout procedures.

Key specifications at a glance

• Amperage Rating: 200A
• Voltage Rating: 600V
• Number of Poles: 3-Pole
• Product Type: Fused Disconnect Switch
• Brand: Square D
• Model: HU364

Why the HU364 stands out

• Reliable isolation for three‑phase systems: The 3-pole design is purpose-built to safely disconnect all live lines in three‑phase applications, reducing risk during maintenance and servicing.
• Fused protection for controlled interruption: The fused configuration provides predictable interruption, helping to limit arcing and protect downstream equipment from faults.
• Lockout/Tagout compatibility: Designed to integrate with standard lockout devices, enabling compliant, hands‑free maintenance shutdowns and safer work environments.
• Durable, long‑term performance: Built for industrial and commercial settings, it’s engineered to endure frequent operation, exposure to demanding loads, and the rigors of daily use.

Ideal use cases

• Industrial facilities requiring rapid and safe power isolation for motors, conveyors, and processing lines.
• Commercial plants and HVAC systems where dependable disconnects reduce downtime during service.
• Electrical panels and switchgear assemblies that demand robust fuse protection and clear disconnection paths.

Practical considerations and benefits

The HU364 provides a clear, reliable means to isolate circuits in compliance with safety protocols. Its fused design minimizes surge effects and offers a straightforward maintenance workflow: verify the disconnect is open, apply a lockout/tagout device, and perform servicing with confidence. When rapid re-energization is required, the switch enables quick, safe restoration of power with the assurance that downstream equipment remains protected.

In summary, the Square D HU364 is a purpose-built solution for reliable electrical isolation in three‑phase systems, combining strong protection, lockout/tagout readiness, and durable construction suitable for persistent industrial and commercial use. If you need a proven, maintenance-friendly fused disconnect switch that keeps operations safe and compliant, HU364 delivers measurable value where it counts.