Square D H363N 100A 3P 600V Safety Switch, NEMA 1, Fusible | AmpState

Meet the Square D H363N 100A 3P 600V Safety Switch—a purpose-built disconnect and isolation point designed for everyday electrical work. This fusible safety switch from a trusted industrial brand is built to keep your machinery, panels, and control systems protected while making maintenance straightforward and predictable.

• 3-pole, 100 A, 600 V capability supports three-phase systems up to 600 volts, providing a solid, reliable disconnect point for motors, conveyors, and other industrial equipment.
• Fusible protection with replaceable fuses offers fast fault interruption and a simple field-maintenance workflow, helping safeguard wiring and components while keeping downtime to a minimum.
• NEMA 1 enclosure designed for indoor, dust-protected environments, giving you a compact, organized safety switch right at the point of use.
• Direct part-number match with Square D H363N ensures compatibility with existing panels and spare inventories, reducing guesswork during installation or replacement.
• Industrial reliability from Square D sold by AmpState, with support to confirm fit and compatibility for your specific setup.

Ideal for: maintenance teams, panel builders, and facilities engineers who need a dependable, easily interchangeable disconnect solution that aligns with exact part numbers and standard safety practices. This is especially valuable when stocking a spare that must match a precise model.

Practical use cases:

• Equipment disconnection for routine service and repair on manufacturing lines or processing equipment.
• Control panel assemblies requiring a clean, code-compliant safety switch with a guaranteed three-phase disconnect.
• Indoor electrical rooms where a compact, 3-pole disconnect at 600V is needed to isolate circuits safely.

Compared to adaptable, non-fusible options, the H363N’s fusible design allows for straightforward fuse replacement in the field while maintaining consistent protection across your system. The NEMA 1 enclosure protects against dust in indoor environments, and the three-pole configuration ensures all phases are safely disconnected together.

Tips for best results:

• Keep a small stock of compatible fuses and a fuse puller on hand for quick maintenance and minimal downtime.
• Double-check the exact part number (H363N) to ensure it fits your panel or equipment disconnect housing.
• Follow proper lockout/tagout procedures to ensure safe servicing of energized equipment.

AmpState offers the Square D H363N 100A 3P 600V Safety Switch, NEMA 1, Fusible for purchase. If you need help matching a part number or confirming compatibility, message us and we’ll help you confirm fit.