Square D DU322 - 60A, 240V, General-Duty, Safety Switch

Square D DU322 - 60A, 240V, General-Duty, Safety Switch is a robust, hard-working solution for reliable on/off isolation and overcurrent protection in challenging industrial and commercial environments. Built to endure demanding duty cycles, this fusible safety switch provides immediate disconnection and protection when it matters most.

Designed to fit where space is at a premium, the DU322 combines a compact footprint with straightforward maintenance, so you can perform routine inspections, fuse replacements, or contact-life checks without disturbing the entire electrical setup. Its general-duty rating makes it versatile across a wide range of applications—from motor disconnects to panelboards and branch circuits.

What makes the DU322 stand out

• 60A, 240V capacity: Delivers dependable protection for common industrial loads and motor-driven equipment in a single, easy-to-service device.
• General-Duty fusible design: Optimized for straightforward protection in routine industrial and commercial settings, with clear, accessible fuse elements.
• On/off isolation + overcurrent protection: Quick shutdown capability paired with reliable fault protection to minimize downtime.
• Compact, maintainable form: Fits into tight panels and electrical rooms while staying easy to access for inspections, fuse changes, and servicing.
• Versatile use cases: Ideal for motor disconnects, panelboards, and branch circuit protection where a compact protective switch is required.

Use cases and installation considerations

Perfect for service entrances in small to mid-size facilities, manufacturing lines, conveyors, and equipment rooms where a dedicated disconnect is needed to meet lockout-tagout and maintenance workflows. When selecting this device, pair it with compatible protective components and ensure wiring and grounding practices conform to local codes and NEC/IEC standards.

Specifications at a glance

• Model: DU322
• Amperage: 60A
• Voltage: 240V
• Duty: General
• Function: Safety switch with on/off isolation and overcurrent protection
• Application: Motor disconnects, panelboards, branch circuit protection