Square D DU322 - 60A, 240V, 3-Pole, Non-Fusible Disconnect Switch

When safe, dependable electrical isolation is non-negotiable, the Square D DU322 stands up to the challenge. This 60A, 240V, 3-Pole Non-Fusible Disconnect Switch is purpose-built for demanding industrial and commercial environments where reliable disconnection under load is essential and lockout/tagout procedures must be straightforward and enforceable.

Key specifications at a glance

• Amperage rating: 60 A
• Voltage rating: 240 V
• Poles: 3-Pole
• Type: Non-Fusible Disconnect Switch
• Brand / Model: Square D DU322

Why the DU322 stands out

• Clear, safe isolation designed to provide a definitive disconnect for maintenance, troubleshooting, and safety lockout/tagout—helping you protect personnel and equipment during service.
• Lockout/tagout ready construction simplifies compliance with safety protocols, ensuring that de-energized equipment remains secured during servicing.
• Load-ready performance delivers dependable disconnection under load, reducing the risk of arcing or partial energization when servicing or reconfiguring systems.
• Durability for demanding environments built to withstand industrial and commercial settings, providing long-term reliability even in rugged installations.
• Precise control for multi-system setups with its 3-pole design, enabling clean, simultaneous disconnection of all live conductors in a 3-phase circuit.

Practical use cases

• Motor and MCC (motor control center) enclosures where a dedicated disconnect point is required for safe maintenance.
• Electrical service disconnects in commercial buildings to isolate large equipment like pumps, compressors, or HVAC racks during service windows.
• Temporary shutdowns for production lines or processing equipment without introducing auxiliary fusing that could complicate restarts.
• Baseline safety practice in industrial retrofit projects where a robust, non-fusible switch ensures a clear disconnection path for technicians.

Installation and compatibility

The DU322 is designed for straightforward integration into systems that use a 3-pole, 240V disconnect. As a non-fusible switch, it provides a clean isolation point without internal fuses, making it ideal to pair with your existing protection scheme and fusing as dictated by your electrical design. Ensure proper mounting, wiring within rated terminals, and adherence to local electrical codes to maintain optimal performance and safety.

Choosing the right disconnect for your system

For facilities prioritizing safety, reliability, and ease of maintenance, the Square D DU322 offers a purpose-built solution that aligns with typical industrial and commercial workflows. It’s especially well-suited for teams that must enforce lockout/tagout practices while maintaining a clear, safe isolation point across 3-phase equipment. If your application demands a durable, load-ready, non-fusible disconnect with dependable performance, the DU322 is engineered to deliver.

Enhance your electrical safety and maintenance efficiency with a trusted disconnect switch that matches the scale of your operation. The Square D DU322—where robust isolation meets practical, everyday reliability.