Eaton Cutler-Hammer DH364NGK - 200A, 600V, Fused Disconnect Switch

The Eaton Cutler-Hammer DH364NGK is a purpose-built fused disconnect switch engineered for dependable electrical isolation in demanding industrial and commercial environments. With a 200A current rating and a 600V voltage limit, this unit provides clear, reliable disconnection under load while supporting strict lockout/tagout procedures for safe maintenance and service work. Built for durability and consistent performance, the DH364NGK helps keep critical equipment protected and downtime minimized.

Key benefits that matter in real-world use

• Robust protection with built-in fusing: The fused disconnect design interrupts fault currents efficiently, helping reduce arcing and improving overall circuit safety during shutdowns and maintenance.
• Strong safety alignment with lockout/tagout (LOTO): Ready for standard padlocks and LOTO procedures, enabling technicians to secure circuits during servicing and ensuring compliance with safety protocols.
• Clear isolation and status visibility: The DH364NGK is designed to provide a definitive disconnect indication, so maintenance teams can confirm when the line is safely isolated.
• Rugged indoor enclosure (NEMA 1): Built to withstand the rigors of busy electrical rooms, contributing to long-term reliability in daily operations.
• High compatibility for power distribution: Suitable for main feeders and motor-control circuits in a variety of industrial and commercial applications, including manufacturing lines, pumps, and HVAC installations.

What’s inside the specs you need

• 200A
• voltage rating: 600V
• enclosure rating: NEMA 1
• product type: Fused Disconnect Switch
• brand: Eaton Cutler-Hammer
• model: DH364NGK

Ideal applications and scenarios

Engineered for facilities that rely on reliable electrical isolation, the DH364NGK excels in:

• Industrial production lines requiring safe power shutdowns during maintenance or tool changes
• Motor feeders and large equipment feeds where rapid, dependable disconnection is critical
• Commercial facilities with critical HVAC or pumping systems needing controlled isolation for safety and service work
• Panel and switchgear installations where a durable, ready-to-use fused disconnect is preferred for compliance and rapid deployment

Maintenance, installation tips, and best practices

• Plan fuse replacement with the same amperage and type to preserve protective characteristics and electrical coordination.
• During installation, ensure proper alignment with your distribution layout to minimize switching wear and maximize service life.
• Integrate the unit into your LOTO program by designating standard padlock points and clearly labeling the disconnect for maintenance personnel.
• Schedule periodic inspections of the enclosure and contact interfaces to verify clean operation and reliable disconnection when needed.

The DH364NGK from Eaton Cutler-Hammer delivers a thoughtful combination of precise electrical isolation, safety-focused features, and durable construction designed for the realities of busy facilities. For engineers and technicians needing a reliable, 200A, 600V fused disconnect, this unit provides a clear path to safer maintenance, improved protection of upstream equipment, and streamlined compliance with lockout/tagout procedures.