Square D H363 - 100A, 600V, Disconnect Switch

Meet the Square D H363 disconnect switch—a purpose-built solution for safe, reliable electrical isolation in demanding industrial and commercial environments. With a practical 100A current rating and a 600V maximum voltage, this device is engineered to perform under load while supporting rigorous lockout/tagout (LOTO) procedures. Built to endure the rigors of daily operation, the H363 delivers consistent disconnection when it matters most, helping maintenance teams minimize risk and downtime.

What makes the H363 stand out

• Accurate 100A rating: precisely sized to control and isolate mid-to-large feeders without overtaxing the switch.
• 600V maximum voltage: suitable for a wide range of commercial and light-industrial circuits, providing dependable performance in standard electrical environments.
• Safe isolation under load: designed to disconnect circuits during active operation when needed, enhancing safety during maintenance and testing.
• LOTO-friendly design: supports proper lockout/tagout practices to ensure equipment remains de-energized during servicing.
• Durability for long-term use: built to withstand the realities of industrial use, reducing replacement cycles and maintenance concerns.
• Compatibility with Square D systems: integrates smoothly within Square D panels and electrical layouts, offering a cohesive safety and control solution.

Ideal applications

• Industrial facility feeders and main service disconnects where reliable isolation is essential
• Commercial electrical rooms needing a robust switch for routine maintenance and safety procedures
• Motor control circuits and equipment lines requiring quick, safe de-energization
• OEM equipment installations that demand a dependable, switch-based safety disconnect

Why this solution matters for your operation

The H363 isn’t just a switch—it’s a safety and reliability enabler. By delivering dependable disconnection under load, it helps technicians perform maintenance without unnecessary exposure to live circuits. The combination of a solid 100A rating and 600V capability means fewer compromises when selecting a control and safety device for medium-scale electrical systems. With LOTO compatibility at its core, workers can implement safe, auditable shutdowns that support regulatory compliance and on-site safety culture.

Technical snapshot

• Brand: Square D
• Model: H363
• Amperage rating: 100A
• Voltage rating:
600V
• Product type: Disconnect switch

For facilities and teams seeking a reliable, purpose-built disconnect switch that aligns with safety best practices and real-world electrical protection needs, the Square D H363 offers a clear path to safer operations, efficient maintenance, and durable performance over time.