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

The Square D HU364 is a robust 200A, 600V fused safety switch designed for demanding industrial and commercial environments where safe electrical isolation is non-negotiable. Built as a 3-pole unit with a NEMA 1 enclosure, it delivers dependable disconnection under load and supports stringent lockout/tagout procedures, ensuring maintenance can be performed safely and efficiently.

Key advantages that set the HU364 apart

• Three-pole design for 3‑phase systems: Perfectly suited to motor drives, conveyors, pumps, and other three‑phase equipment.
• 200A current rating: Reliable protection and isolation for high-demand loads without frequent sizing changes.
• 600V maximum rating: Ready for heavy-duty industrial power distribution and industrial automation environments.
• Fused protection: Integrates overcurrent protection with rapid, controlled disconnection during faults.
• Lockout/Tagout compatibility: Facilitates compliant, safe servicing and preventive maintenance workflows.
• Disconnection under load: Maintains safe shutdown capability even when circuits are energized, reducing downtime during servicing.
• NEMA 1 enclosure: Optimized for indoor, dry, clean environments with straightforward installation.
• Durable, long-term design: Built to resist the rigors of busy facilities, supporting steady performance over years of operation.

Ideal applications and use cases

• Industrial manufacturing lines with motors and driven equipment needing reliable isolation during maintenance
• Commercial facilities employing three-phase motors, fans, pumps, or conveyors requiring safe, code-friendly disconnects
• HVAC or processing plants where rapid, predictable disconnection enhances safety and uptime
• Upgrades or retrofits of existing electrical systems that demand a certified fused safety switch for added protection

Technical snapshot

• Amperage rating: 200A
• Voltage rating: 600V
• Number of poles: 3-Pole
• Enclosure: NEMA 1
• Product type: Fused Safety Switch
• Brand: Square D
• Model: HU364

Choosing the Square D HU364 means opting for a trusted, purpose-built solution that prioritizes operator safety, maintenance practicality, and long-term reliability. It’s ready to integrate into new installations or upgrades where dependable electrical isolation and orderly lockout/tagout processes are essential for daily operations.