Square D DU325 - 400A, 240V, 3-Pole, Safety Switch

Square D DU325—a high-performance safety switch engineered for industrial and commercial environments that demand safe, reliable electrical isolation. With a 400A rating, 240V operation, and a sturdy 3-pole design, the DU325 delivers dependable disconnection under load and supports proper lockout/tagout procedures, helping maintenance teams work safely and efficiently for the long term.

Why this safety switch stands out

• Robust current handling accommodates demanding equipment and electrical feeders without compromising safety or performance.
• Clear, reliable isolation across all three conductors thanks to the three-pole configuration, ensuring complete disconnect readiness during maintenance or servicing.
• Lockout/tagout compatibility supports compliant safety practices, enabling controlled servicing and reducing exposure to energized circuits.
• Durable build for industrial use designed to withstand the rigors of busy facilities, manufacturing floors, and service environments where dependable shutdowns are essential.

Ideal use cases

Perfect for service entrances, machine control panels, and line-side isolation in manufacturing facilities, warehouses, and commercial sites. When uptime matters and safety standards require verifiable disconnection, the DU325 delivers peace of mind in daily operations and during planned maintenance.

Specifications at a glance

• 400A
• voltage rating: 240V
• number of poles: 3-Pole
• product type: Safety Switch
• brand/model: Square D DU325

Installation and best practices

For optimal performance, have a licensed electrician install the DU325 and ensure compatibility with your existing panels and feeders. Use proper labeling and follow lockout/tagout procedures to maximize safety during maintenance and servicing. This safety switch is built to be a reliable, long-lasting component of your electrical safety infrastructure.

Choose the Square D DU325 when you need a dedicated, high-capacity safety switch that clearly communicates disconnection, supports rigorous safety protocols, and stands up to the demands of modern industrial and commercial environments.