Westinghouse HU363 - 100A, 600V, 3-Pole, Disconnect Switch

The Westinghouse HU363 3-Pole Disconnect Switch is engineered for demanding industrial and commercial environments where safe, reliable electrical isolation is non-negotiable. With a robust 100 A capacity and a 600 V rating, this disconnect switch delivers quick, under-load disconnection to support maintenance, shutdowns, and emergency procedures without compromising safety or uptime.

• Amperage rating: 100 A
• Voltage rating: 600 V
• Poles: 3-Pole
• Product type: Disconnect Switch
• Brand: Westinghouse
• Model: HU363

Why the HU363 stands out

Designed with safety and reliability at its core, the HU363 supports proper lockout/tagout procedures to protect maintenance technicians and prevent accidental re-energization. Its three-pole configuration ensures simultaneous isolation of all conductors, reducing risk during servicing and making it a trusted choice for control panels, feeders, and motor circuits.

Ideal use cases

• Main service disconnects for commercial electrical rooms and industrial facilities
• Control panel and motor control center wiring where clean, decisive de-energization is required
• Maintenance shutoffs in production lines, conveyor systems, and HVAC installations
• Emergency and routine shutdowns that demand dependable performance under load

What problems it solves

• Prevents accidental energization during maintenance with reliable lockout/tagout compatibility
• Provides a clear, immediate path to safe isolation when systems require service or inspection
• Delivers consistent disconnection under load, minimizing downtime and safeguarding personnel

Practical tips for installation and use

• Mount in a dry, accessible enclosure where the handle is easily reachable by authorized personnel
• Pair with appropriate lockout devices to maximize safety during service work
• Verify that the switch operates freely by performing a controlled disconnect/load test after installation
• Regularly inspect for signs of wear around the handle and contacts to maintain long-term performance

For facilities seeking a dedicated, purpose-built solution for safe electrical isolation, the Westinghouse HU363 3-Pole Disconnect Switch blends straightforward operation with durable performance, helping you meet safety standards while keeping equipment and workflows online when you need them most.