Eaton Cutler-Hammer DG321URB 30A 3P 240V Safety Switch, NEMA 3R, Fusible, Non-Fusible | AmpState

Meet the Eaton Cutler-Hammer DG321URB—a rugged safety switch built to deliver reliable equipment disconnect and precise isolation right at the point of use. Designed with retrofit projects in mind, this switch keeps your maintenance planning smooth by preserving the same part number even as you upgrade or swap components.

Key specifications at a glance

• Amperage: 30 A
• Poles: 3
• Voltage: 240 V
• Enclosure rating: NEMA 3R (outdoor-ready, weather- and corrosion-resistant)
• Configuration: Fusible or Non-Fusible options available
• Purpose: Equipment disconnect and isolation at the point of use
• Part number: DG321URB

Why this safety switch stands out

What sets the DG321URB apart is its versatility in a single, durable enclosure. Choose Fusible for integrated protection and ease of fuse replacement, or Non-Fusible when you want a straightforward disconnect with the option to add fusing later. The NEMA 3R rating ensures dependable operation in outdoor or semi-enclosed environments, so maintenance teams can work confidently without relocation or enclosure changes.

Ideal use cases and practical applications

• Outdoor or harsh-environment equipment where a reliable disconnect is required for safe maintenance and service.
• Retrofit projects where continuity of the exact part number is important for scheduling, sourcing, and documentation.
• Systems that demand a robust, three-phase 240V disconnect with a clear point-of-use isolation strategy.
• Maintenance planning scenarios that benefit from having flexible fusible/non-fusible configurations in a single catalog part.

How it supports safe, efficient operation

• Clear, hands-on isolation prevents accidental energization during service work, protecting technicians and equipment.
• Outdoor-ready enclosure reduces the need for additional protective housing in exposed locations.
• Flexibility in fuse configuration helps align protection strategy with system design and maintenance workflows.

Installation and compatibility

The DG321URB is designed for straightforward integration as an equipment disconnect at the point of use. If you’re matching a part number for an existing installation or confirming compatibility with your panel or system, AmpState offers guidance to ensure a correct fit.

Ready to secure your electrical infrastructure with a dependable, adaptable safety switch? AmpState has you covered with the Eaton Cutler-Hammer DG321URB—a thoughtful choice for reliable isolation, retrofit readiness, and long-term maintenance planning.