Eaton Cutler-Hammer DG321UGB 30A 3P 240V Safety Switch, NEMA 1, Fusible, Non-Fusible | AmpState

The Eaton Cutler-Hammer DG321UGB is a purpose-built safety switch designed for clean, reliable equipment disconnect and isolation at the point of use. With a 30-amp, 3-pole design at 240V, this NEMA 1 enclosure gives maintenance teams, panel builders, and inventory managers a precise, field-ready solution that matches exact part numbers and reduces downtime when service is needed.

Key specifications

• Brand: Eaton Cutler-Hammer
• Part number: DG321UGB
• Product type: Safety switch (equipment disconnect and isolation)
• Amperage: 30 A
• Poles: 3
• Voltage: 240 V
• Enclosure: NEMA 1
• Configuration: Fusible or Non-Fusible
• Availability: AmpState

Who this is for

• Maintenance teams needing a dependable, standards-aligned disconnect for motor and control circuits
• Panel builders seeking a direct part-number match to streamline design, ordering, and installation
• Spare inventory planners who value consistent, easy-to-identify Eaton components

Why this matters in your operation

In manufacturing floors, service bays, or control rooms, a safe, clearly specified disconnect reduces risk during maintenance and minimizes downtime when switching over circuits. The DG321UGB offers the right balance of protection and accessibility for three-phase loads, with the flexibility of fusible or non-fusible configurations to match your safety strategy and existing wiring practices.

Unique value you won’t want to miss

• Exact-part compatibility: A direct part-number match minimizes guesswork during procurement and reduces the risk of mismatched components in critical safety circuits.
• Versatile configuration: Fusible or non-fusible options let you tailor protection to your specific motor loads and maintenance philosophy without swapping hardware.
• Durable, code-aligned design: NEMA 1 enclosure provides robust indoor protection for typical control panels and equipment rooms, aligning with common electrical safety standards.
• Practical for updates and replacements: The DG321UGB is a familiar, widely stocked part from Eaton Cutler-Hammer, easing maintenance planning and supply chain continuity.

Practical tips and use cases

• Install at the point of use to provide a clear, hands-on disconnect for service or motor maintenance without exposing operators to live circuits.
• Great fit for three-phase motor control centers, conveyor drives, and HVAC or processing equipment where quick isolation is essential.
• Stock both fusible and non-fusible variants in spare inventory to accommodate changing protection requirements across different lines or machines.
• When upgrading panels, verify the DG321UGB part number to ensure seamless compatibility with existing wiring, mounting spaces, and control wiring harnesses.

If you’re unsure about fit or compatibility, AmpState is ready to help confirm the DG321UGB matches your design needs and installation constraints. Reach out with your panel layout, existing wiring, and motor specifications, and we’ll assist in validating the configuration and application fit.