Square D HU363 - 100A, 600V, Safety Switch

The Square D HU363 Safety Switch is a robust, time-tested solution for safe electrical isolation in demanding industrial and commercial environments. Engineered to support strict lockout/tagout procedures, this 100A, 600V disconnect delivers dependable performance when you need to isolate energized equipment quickly and securely.

What makes the HU363 stand out

Designed with safety and reliability at its core, the HU363 combines durable construction with precise disconnection under load. This means maintenance teams can trust it during servicing, minimizing downtime and uncertainty when equipment must be isolated for repairs or routine preventive maintenance.

Key specifications

• Amperage rating: 100 A
• Voltage rating: 600 V
• Product type: Safety Switch
• Brand: Square D
• Model: HU363

Ideal for whom and where

Facility managers, maintenance technicians, and electrical contractors who require a reliable service disconnect will find the HU363 a practical fit for MCCs, main service panels, and machine isolation. It’s well-suited for applications where safe, code-conscious isolation is essential and downtime needs to be kept to a minimum.

Practical use cases

• Isolating motors, conveyors, pumps, and other heavy loads during maintenance
• Primary disconnection points in commercial electrical rooms and industrial plants
• Lockout/tagout procedures to ensure authorized re-energization only after work is complete

Benefits that matter in real workflows

• Reliable under-load disconnection for safer servicing
• Supports standard lockout/tagout practices to protect maintenance personnel
• Durable design built for long-term use in demanding environments
• Clear, straightforward operation that reduces setup time during outages

Compatibility and installation considerations

The HU363 is designed to integrate with Square D distribution gear and typical electrical distribution layouts, providing a familiar form factor for installers and electricians. For ongoing reliability, ensure proper enclosure clearance, secure mounting, and adherence to all applicable electrical codes during installation and servicing.

Choose the Square D HU363 when you need a dependable, purpose-built safety switch that prioritizes worker safety, supports lockout/tagout workflows, and delivers consistent performance across daily disconnections in busy industrial and commercial settings.