Cutler-Hammer DG223NRB - 100A, 240V, Switch

Engineered for reliability in demanding industrial and commercial environments, the Cutler-Hammer DG223NRB is a 100A, 240V fusible switch designed to deliver dependable on/off isolation paired with integrated overcurrent protection. This compact, maintenance-friendly unit is ideal wherever motor disconnects, panelboards, or branch circuits require robust protection in a single, serviceable package.

Why the DG223NRB stands out

• Integrated protection and isolation in one durable switch, reducing panel complexity and simplifying wiring.
• Rugged construction built for continuous operation in harsh industrial environments, with components chosen for long, reliable service life.
• Compact footprint that fits into tight electrical spaces without sacrificing accessibility for maintenance or fuse replacement.
• Maintenance-friendly design with accessible fuse elements and straightforward field service, minimizing downtime during servicing.
• Clear motor disconnect and branch circuit protection capabilities, ensuring safe shutdown and protection of downstream equipment.
• On/off isolation with overcurrent protection—a combination that streamlines installation and enhances system safety.

Ideal use cases

• Motor disconnects on production lines, pumps, conveyors, and other heavy loads where immediate isolation is critical.
• Panelboard protection in space-constrained electrical rooms or equipment enclosures, enabling centralized control and protection.
• Branch circuit protection for process equipment and control circuits that require a compact, serviceable switching solution.

Key specifications

• Model: DG223NRB
• Amperage: 100A
• Voltage: 240V
• Type: Fusible switch providing on/off isolation with overcurrent protection

Practical guidance for installation and use

Pair the DG223NRB with the appropriate fuse elements sized for your load and inrush conditions. Ensure proper wiring alignment with your panelboard configuration and follow standard lockout/tagout procedures during maintenance to protect personnel. Regular inspections of contacts and fuse components help prevent nuisance trips and extend the switch’s service life. For facilities updating motor control or upgrading older disconnects, the DG223NRB offers a reliable, space-conscious solution that keeps critical systems protected and easy to service.