Square D DU323RB - 100A, 240V, 3-Pole, General-Duty, Safety Switch

Meet the Square D DU323RB—a rugged 100A, 240V, 3-Pole general-duty safety switch built for dependable on/off isolation and robust overcurrent protection in demanding industrial and commercial settings. This disconnect is designed to keep downtime to a minimum while delivering clear, straightforward control for motor circuits and electrical distributions.

Key specifications at a glance

• Model: DU323RB
• Amperage: 100A
• Voltage: 240V
• Poles: 3-Pole
• Duty: General-Duty

Distinctive value for motor and panel protection

• Precise isolation: Quickly disconnect power to motors and branch circuits for safe maintenance or emergency shutdowns.
• Integrated protection: Designed for reliable overcurrent protection in everyday industrial and commercial environments.
• Compact, serviceable design: A compact footprint that fits tighter electrical layouts, with straightforward maintenance and field-friendliness in mind.
• Versatile integration: Ideal as a motor disconnect, panelboard protection point, or a main-breaker-style disconnect in smaller electrical distributions.

Who should consider the DU323RB?

• Facilities and maintenance teams seeking a dependable, easy-to-service safety switch for motorloads, pumps, fans, conveyors, and similar equipment.
• Electrical installers and engineers designing clean, organized panelboards and branch-circuit protection schemes.
• Industrial and commercial sites that require a durable disconnect that combines simple operation with proven performance.

Why this safety switch stands apart

The DU323RB combines Square D’s proven build quality with a straightforward, general-duty design that prioritizes reliability and ease of use. Its three-pole configuration provides robust isolation across all three conductors, ensuring consistent performance even in busy electrical rooms. For teams focused on reducing commissioning time and simplifying ongoing maintenance, this safety switch offers predictable operation, clear status awareness, and a trusted safety-first approach.

Practical usage scenarios and tips

• Motor disconnects: Use as a primary disconnect for large-capacity motors where a simple, reliable switch is preferred over more complex motor controllers.
• Panelboard protection: Serve as a dedicated safety point within a panelboard for rapid de-energization during servicing.
• Branch circuit protection: Implement at key distribution nodes to isolate portions of a system for safe troubleshooting or upgrades.
• Maintenance workflows: Pair with lockout/tagout practices to ensure safe, compliant servicing of energized equipment.

When you install the Square D DU323RB, you’re choosing a time-tested, dependable solution that supports clear electrical isolation, straightforward maintenance, and steady protection for critical industrial and commercial loads. If you’re aiming for a durable, easy-to-service safety switch that delivers on everyday reliability, this 100A, 240V, 3-Pole unit is designed to meet the demand.