Square D DU323RB - 100A, Non-Fusible, Safety Switch

Meet the Square D DU323RB, a 100A non-fusible safety switch engineered for reliable on/off isolation and robust overcurrent protection in demanding industrial and commercial environments. Built to withstand tough conditions, this safety switch delivers consistent performance where it matters most—in control panels, motor circuits, and distribution setups.

Key strengths of the DU323RB include a compact footprint that simplifies panel integration, a rugged construction designed for real-world use, and a straightforward, fuse-free design that reduces maintenance complexity while providing dependable isolation when you need to service or troubleshoot equipment.

Why it stands out

• 100A non-fusible safety switch for reliable circuit isolation without internal fuses, streamlining maintenance and spare parts management.
• Non-fusible design tailored for motor disconnects, panelboards, and branch circuits where a durable, space-efficient safety switch is required.
• Industrial-grade durability built to endure dust, vibration, and temperature variations common in harsh environments.
• Compact, easy-to-integrate footprint fits tight spaces in control cabinets and switchgear, helping you optimize layout without sacrificing protection.
• Respected Square D quality backed by a lineage of dependable electrical protection and consistent performance across power distribution setups.

Ideal use scenarios

The DU323RB is perfect for:

• Motor disconnects in manufacturing lines, conveyors, or equipment bays where rapid, safe isolation is critical.
• Panelboard sections requiring a dedicated, dependable isolation point for maintenance and testing.
• Branch circuit protection needs where a compact, non-fusible switching solution is preferred.

Practical guidance

Choose the DU323RB when you want a straightforward, fuse-free isolation solution that complements external protection schemes. Ensure wiring remains within the 100A rating and install in accordance with applicable electrical codes. This model is designed to deliver reliable performance with minimal ongoing maintenance, helping reduce downtime and support steady, safe operation of your electrical system.