Cutler-Hammer DG323UGB - 100A, 240V, 3-Pole, Safety Switch, NEMA 1

The Cutler-Hammer DG323UGB is a rugged safety switch engineered for dependable on/off isolation and overcurrent protection in demanding industrial and commercial environments. With 100A capacity, 240V operation, and a 3-Pole configuration, this NEMA 1 unit provides a compact, maintainable solution for critical power-disconnection needs.

Designed to streamline critical protection, the DG323UGB excels as a motor disconnect, a main or branch switch in panelboards, and a reliable fusible protection point in tight electrical enclosures. Its robust construction is built to endure frequent operation and the realities of busy facilities, while delivering straightforward serviceability when maintenance or fuse replacement is required.

Key features that matter in real-world use

• 100A, 240V, 3-Pole configuration for complete, safe isolation of three-phase circuits.
• NEMA 1 enclosure ideal for indoor, general-purpose protection in cabinets and control rooms.
• Fusible switch design combines isolation with overcurrent protection in a single, compact unit.
• Maintainable and service-friendly with accessible fuse points and simple field maintenance.
• Compact footprint fits into crowded panels and retrofit projects without sacrificing protection or performance.
• Trusted Cutler-Hammer reliability backed by a long history of electrical protection solutions.

Who benefits from this safety switch

• Facilities managers and maintenance teams seeking durable, code-compliant motor disconnects and branch-circuit protection.
• Electrical installers and panel builders needing a reliable, space-efficient fusible switch for indoor applications.
• OEMs integrating compact, serviceable protection into equipment enclosures and control panels.

Practical use cases

• Motor-driven equipment on manufacturing lines where a safe, code-compliant disconnect is required.
• Panelboard upgrades or replacements demanding a compact fusible switch with clear isolation.
• Branch circuit protection in control cabinets for pumps, fans, conveyors, and compressors.

Tips for installation and ongoing operation

• Ensure proper fuse type and rating according to motor starting current and applicable electrical codes.
• Schedule regular inspection of the enclosure for cleanliness and signs of wear to maintain reliable performance.
• Follow local electrical codes and lockout/tagout procedures during maintenance to ensure safe servicing.