Square D HU364 - 200A, 600V, Fused Safety Switch

Square D HU364 is a 200A, 600V fused safety switch engineered for rugged industrial and commercial environments where safe electrical isolation is non-negotiable. This unit is purpose-built to support proper lockout/tagout procedures while delivering a dependable disconnection under load, helping maintenance teams work safely and respond quickly when service is required. With the HU364, you gain not just a switch, but a reliable safety control that prioritizes personnel protection and system integrity over the life of your equipment.

Key specifications

• Amperage rating: 200A
• Voltage rating: 600V
• Product type: Fused Safety Switch
• Brand: Square D
• Model: HU364

Why the HU364 stands out

• Integrated fused protection plus isolation: The fused safety switch design provides immediate overcurrent protection while reliably disconnecting circuits, reducing the risk during maintenance and setup.
• Lockout/tagout readiness: Built to support standard lockout/tagout practices, enabling technicians to secure circuits during service with confidence and compliance in mind.
• Durable, long-term performance: Built for continuous operation in demanding environments, it maintains electrical isolation and dependable disconnection even after frequent use.
• Versatile, scalable safety solution: Ideal for commercial facilities and light-to-medium industrial applications where a robust main disconnect or feeder switch is required.

Ideal use cases

• Main disconnects in equipment rooms, service panels, and electrical rooms
• Feeder protection for motors, conveyors, pumps, and other industrial equipment
• Locations requiring strict lockout/tagout compliance during maintenance
• Systems where a single, reliable point of isolation improves safety and reduces downtime

Practical benefits and usage tips

• Enhance maintenance safety: By combining disconnection and protection in one unit, you simplify the shutdown process and protect workers during servicing.
• Improve uptime with predictable isolation: The HU364’s design prioritizes dependable performance under load, helping you avoid unexpected outages during critical operating windows.
• Plan for modular integration: Use in panels or feeders where a 200A, 600V fused switch is the right fit for your electrical architecture, ensuring consistent performance across installations.
• Compliance-ready operation: Aligns with common safety and lockout/tagout practices, supporting safer maintenance routines and clearer escalation paths for fault isolation.

For facilities seeking a proven fused safety switch that merges robust protection with reliable isolation, the Square D HU364 delivers clear, tangible value. It’s the thoughtful choice for safeguarding personnel, protecting equipment, and keeping critical systems running smoothly.