Square D D323N 100A 3P 240V Safety Switch, NEMA 1, Fusible | AmpState

The Square D D323N 100A 3P 240V Safety Switch delivers dependable equipment disconnect and isolation right at the point of use. Built with a NEMA 1 enclosure and a fusible design, this switch provides rapid overcurrent protection while keeping your control system and wiring neatly protected and accessible for service.

• Manufacturer: Square D
• Part Number: D323N
• Product Type: Safety Switch
• Amperage: 100 A
• Poles: 3
• Voltage: 240V
• Enclosure: NEMA 1
• Fusible: Yes
• Availability: AmpState

Why this matters for your operation

• Exact BOM compatibility: The D323N is the original Square D part number, making it ideal for replacement projects and for stocking spares that keep your bill of materials aligned with the original equipment.
• Reliable point-of-use disconnect: Use this switch to safely isolate equipment for maintenance or service without disturbing other circuits.
• Fusible protection: The fusible configuration provides prompt overcurrent protection, helping to guard downstream components and reduce the risk of electrical faults cascading through your system.
• Three-pole, 240V performance: Designed for mid-size industrial loads, supporting balanced switching across three phases with a single, consolidated disconnect device.

Who benefits most

• Maintenance teams performing scheduled outages or emergency repairs where a dependable, original-part disconnect is essential
• Electrical contractors and installers needing a readily available, OEM-aligned replacement part
• Facilities managers and OEMs aiming to preserve BOM integrity and minimize compatibility questions during upgrades

Practical considerations and tips

• When replacing, confirm the exact D323N fit to ensure seamless integration with your existing wiring, fusing, and control circuits.
• Keep spare D323N switches on hand to reduce downtime during maintenance or rapid equipment service cycles.
• Since it is fusible, plan for the appropriate fuse configuration and follow your facility’s electrical safety practices during installation and testing.
• AmpState offers assistance to verify compatibility and fit for your specific application—just reach out if you need a quick confirmation.

Tap into trusted Square D reliability with the D323N—the precise, ready-to-install safety switch that keeps your equipment safe, accessible for service, and aligned with your original design specifications.