Square D DU323 - 100A, 240V, Disconnect Switch

The Square D DU323 100A, 240V Disconnect Switch is purpose-built for industrial and commercial environments that demand safe, reliable electrical isolation. This is more than just a switch—it's a critical safety component that ensures you can lock out and tag out during maintenance while delivering dependable disconnection under load.

Why the DU323 stands out

• Precise current and voltage handling: rated for 100 A at 240 V, making it suitable for mid- to high-capacity circuits without compromising safety or performance.
• Safe, intentional isolation: designed to support proper lockout/tagout procedures, giving maintenance personnel a clear, verifiable method to isolate power before work begins.
• Reliable under load: engineered to provide a secure disconnection even when circuits are energized, helping protect personnel and equipment during servicing.
• Durable for long-term service: built to withstand the rigors of busy industrial environments, ensuring consistent performance over time.
• Easy integration: a straightforward fit into standard electrical layouts, enabling quick replacement or installation without complicated modifications.

Ideal applications

• Motor and feeder isolation in manufacturing floors and plant rooms
• Electrical room and panelboard shutdowns for routine maintenance
• Commercial service panels requiring dependable, code-aligned disconnection points

What you get with the Square D DU323

• Amperage Rating: 100 A
• Voltage Rating: 240 V
• Product Type: Disconnect Switch
• Brand: Square D
• Model: DU323

Choosing the DU323 means opting for a dedicated safety asset that helps you meet lockout/tagout requirements and keeps routine maintenance—and your equipment—running smoothly. For teams that value reliable isolation, clear operation, and durable performance in demanding environments, the Square D DU323 is a practical, trusted solution.