Square D H364 - 200A, 600V, Fused Disconnect Switch

The Square D H364 is a 200A, 600V fused disconnect switch built to anchor safe, reliable electrical isolation in demanding industrial and commercial environments. Designed for ongoing duty, it delivers dependable disconnection under load while supporting proper lockout/tagout procedures to keep maintenance teams protected.

Why choose the Square D H364

• Immediate, reliable isolation with a fused disconnect design that interrupts power cleanly when you need to service equipment.
• Lockout/Tagout readiness engineered to integrate with standard safety procedures, helping you keep teams safe during maintenance.
• Long-term durability purpose-built for harsh facilities, delivering consistent performance across years of operation.
• Clear, decisive operation under load ensures circuits can be safely disconnected even in demanding workloads.

Ideal applications and use cases

Perfect for service disconnects, feeders, and equipment isolation in industrial plants and commercial facilities. With a 200A rating at up to 600V, the H364 is well-suited for disconnecting upstream power to motors, conveyors, transformers, and other high-demand loads. It’s a practical choice for panel boards and switchgear assemblies where safe energization control is critical during maintenance or fault response.

Specifications at a glance

• Amperage Rating: 200A
• Voltage Rating: 600V
• Product Type: Fused Disconnect Switch
• Brand: Square D
• Model: H364

Practical tips for installation and operation

Plan placement to minimize wiring complexity and clearly label the circuit it serves to streamline maintenance work and safety checks. Ensure the correct fuse type is used for the circuit and replace only with approved equivalents. Regular inspection of the switch and fuses helps sustain reliable performance and quick fault response when issues arise.

In daily operations, the H364 supports streamlined maintenance cycles: technicians can isolate power safely, perform diagnostics, and re-energize with confidence, reducing downtime and preserving equipment longevity. This fused disconnect switch is a robust choice for facilities that demand consistent isolation, durable construction, and dependable control over their critical electrical loads.