Square D DTU223NRB - 100A, 240V, Double-Throw, Safety Switch

Introducing the Square D DTU223NRB—a compact, robust fusible safety switch engineered for dependable on/off isolation and dependable overload protection in demanding industrial and commercial settings. With a 100A rating and 240V operation, this unit is purpose-built to keep critical equipment safeguarded while maximizing system uptime.

Key features at a glance

• Model: DTU223NRB
• Current rating: 100A
• Voltage: 240V
• Throw type: Double-Throw (two-position control from a single actuator)
• Design: Fusible safety switch for integrated overcurrent protection

This safety switch excels where compact size and straightforward maintenance matter most. The DTU223NRB fits neatly in tight electrical rooms, service corridors, and equipment closets, delivering reliable isolation for motor disconnects, panelboards, and branch circuits without occupying valuable space. The fusible design brings an added layer of protection, helping you manage fault currents and protect downstream devices with fewer components to manage.

Why operators choose this safety switch

• Seamless combination of isolation and overload protection reduces the need for separate protective devices in many installations.
• Simple access to fusing elements and switch contacts makes routine checks and replacements quick and straightforward.
• Ideal for motor disconnects, panelboard assemblies, and branch circuit protection in both new builds and upgrades.
• Built to endure the bumps and vibrations of active industrial and commercial spaces.

Practical use cases

• Motor control centers and standalone motors in manufacturing lines require reliable isolation and protection from overloads—this switch provides both in one compact package.
• Distribution panels in warehouses or facilities that demand space-efficient, easy-to-service protection for multiple branch circuits.
• HVAC and compressed air systems where a single, easily accessible disconnect improves safety and serviceability.

Choosing the Square D DTU223NRB means pairing proven safety with pragmatic design. It’s a dependable solution for technicians who need clear, effective isolation and built-in overcurrent protection without sacrificing space or accessibility. Equip your electrical system with a switch that stands up to daily wear while simplifying maintenance and safeguarding essential loads.