Eaton Cutler-Hammer DG321URB - 30A, 240V, 3-Pole, Safety Switch

The Eaton Cutler-Hammer DG321URB is a purpose-built safety switch engineered for demanding industrial and commercial environments where safe electrical isolation is non-negotiable. With a 30A, 240V, 3-pole design, it delivers dependable, controlled disconnection to keep your operations secure during maintenance and routine shutdowns.

Why this safety switch stands out

• Three-pole, 240V performance provides effective isolation for three-phase circuits, making it ideal for motor starters, feeders, and equipment disconnects.
• NEMA 3R enclosure delivers outdoor-ready protection against weather, dust, and corrosion, so you can rely on safe operation in harsh environments.
• Lockout/Tagout compatibility supports compliant safety procedures, allowing technicians to secure the circuit with padlocks during service without compromising reliability.
• Disconnection under load design ensures a dependable shutdown even when circuits are energized, reducing arcing risk and enabling safer maintenance windows.
• Durable, field-ready construction built for long-term use in industrial and commercial settings, delivering consistent performance across seasons and workloads.

What it means for your operations

If your team works with large motors, conveyors, pumps, HVAC units, or other three-phase equipment, the DG321URB provides a dedicated, safe isolation point that you can trust. Its rugged enclosure protects critical switching components from the elements, while the 30A rating matches common feeder and motor control needs without oversizing your system. When safety and reliability matter most, this safety switch serves as a dependable standard for responsible electrical maintenance.

Ideal use scenarios

• Outdoor equipment rooms and exposed industrial locations requiring weather-resistant safety isolation
• Motor control circuits and feeders in manufacturing lines, processing plants, and material handling setups
• Maintenance-friendly disconnects for pumps, fans, compressors, and HVAC equipment
• LOTO-compliant service points where reliable lockout/tagout procedures are essential

Quick specs at a glance

• Amperage: 30A
• Voltage: 240V
• Poles: 3-Pole
• Enclosure: NEMA 3R (outdoor-rated)
• Product type: Safety Switch
• Brand: Eaton Cutler-Hammer
• Model: DG321URB

Choose the DG321URB for a safety switch that pairs rigorous electrical isolation with durable, weather-ready construction. It’s not just a disconnect — it’s a trusted component that enhances maintenance safety, supports compliance, and helps keep industrial and commercial operations running smoothly.