Square D D323N - 100A, Fused Disconnect Switch

The Square D D323N 100A Fused Disconnect Switch is engineered for industrial and commercial environments where safe electrical isolation is non-negotiable. This fused disconnect provides dependable disconnection under load, and its design supports proper lockout/tagout procedures to protect maintenance crews. Built for long-term reliability, the D323N integrates cleanly into existing electrical distributions, switchgear, and service panels, delivering a clear, defined isolation point when it’s needed most.

• Amperage rating: 100 A fused disconnect switch ready to interrupt and isolate significant electrical loads.
• Fused protection: Built-in fuses offer overcurrent protection and a straightforward path to safe shutdown, with replaceable fuse elements for practical serviceability.
• Lockout/Tagout compatibility: Specifically designed to support lockout/tagout procedures, helping technicians isolate circuits securely during maintenance.
• Disconnection under load: Delivers a decisive disconnect when circuits are energized, reducing arc risk and equipment wear during switching.
• Durable, industrial-minded design: Renowned Square D engineering delivers consistent performance in demanding environments typical of industrial and commercial installations.
• Easy integration: Suits standard electrical layouts and panels, enabling smooth upgrades or retrofits without extensive reconfiguration.

Ideal applications

• Motor and conveyor systems on manufacturing floors requiring reliable isolation for maintenance.
• HVAC, pumps, and other critical equipment in commercial facilities needing quick, safe disconnection.
• Electrical service entrances and distribution panels where a clear, fuse-protected disconnect is required.

Why choose the Square D D323N?

• Unique combination of safe isolation and fuse-based protection in a compact enclosure.
• Proven Square D reliability that supports downtime reduction and predictable maintenance cycles.
• Designed to integrate with existing gear and workflows, minimizing installation complexity and speeding up project timelines.

Equip your electrical room with a trusted, purpose-built solution for safe, reliable isolation. The Square D D323N 100A Fused Disconnect Switch is ready to deliver consistent performance where it matters most—protecting personnel, equipment, and operations.