Square D D223NRB 100A 2P 240V Safety Switch, NEMA 3R, Fusible | AmpState

Meet the Square D D223NRB 100A 2P 240V Safety Switch — a rugged, code-compliant equipment disconnect designed for reliable isolation at the point of use. Built for durability and easy maintenance, it’s the smart choice for replacement projects and spare stocking to keep your BOM aligned with the original part number.

Why this safety switch stands out — a fusible, NEMA 3R enclosure that’s ready for outdoor environments, plus a straightforward, two-pole design that delivers clean, dependable disconnecting capability for 240V circuits. The D223NRB is purpose-built to protect personnel and downstream equipment by providing fast, predictable isolation during maintenance or in fault conditions.

• Amperage and configuration: 100 A, 2 poles, 240V operation for reliable control of industrial loads.
• Enclosure rating: NEMA 3R protection, safeguarding the switch against rain, dust, and outdoor weather so you can install it in exposed locations without compromise.
• Fusible design: Fusible configuration adds upstream protection for motors and circuits, helping to prevent damage from overcurrent events while meeting common safety standards.
• Brand and compatibility: Manufactured by Square D, with the part number D223NRB. A trusted option for matching original equipment specifications and maintaining BOM continuity.

Ideal use cases — perfect for outdoor motor disconnects, pump stations, HVAC outdoor units, and other point-of-use isolation points where dependable, code-compliant safety switching is required. It’s also an excellent replacement part when you need to keep the original part number in your stock, ensuring seamless repairs and faster maintenance cycles.

What you gain with AmpState — access to authentic Square D safety switches for reliable performance and easy procurement. If you’re unsure about compatibility or part-number fit, AmpState offers guidance to confirm the right match for your equipment and installation needs.

In short, the Square D D223NRB 100A 2P 240V Safety Switch provides robust outdoor-grade protection, straightforward disconnection, and BOM-friendly replacement options — a practical, durable solution for safeguarding your electrical systems and maintenance workflows.