Eaton Cutler-Hammer LK3R9FN - 600A, Fused Disconnect Switch

Introducing the Eaton Cutler-Hammer LK3R9FN, a 600A fused disconnect switch engineered for industrial and commercial spaces where safe electrical isolation and dependable disconnection under load are essential. Built to support proper lockout/tagout (LOTO) procedures, this switch helps maintenance teams work confidently, knowing the circuit is safely isolated when service is required.

Key features that matter in the real world

• 600A amperage rating handles demanding loads, making it suitable for feeders, motor circuits, and other high-current applications.
• Fused disconnect design delivers integrated overcurrent protection, reducing the need for additional external safety components.
• Safe electrical isolation ensures a clear, verifiable disconnect point during maintenance or servicing, minimizing exposure to live circuits.
• Lockout/Tagout compatibility supports standard safety procedures, helping facilities maintain compliance and protect personnel.
• Durable, long-term performance built to withstand the demands of busy commercial and industrial environments, providing reliable operation over years of service.

Why this model stands out

The LK3R9FN combines high-current capability with practical safety features in a compact, robust package. Its fused design offers immediate protection against overloads, while its integration with lockout/tagout workflows minimizes downtime during maintenance. For facilities that require a dedicated, reliable isolation device at the point of service, this switch provides a proven, durable solution from a trusted brand in electrical distribution.

Ideal use cases

• Service disconnects for feeders feeding large motors or equipment in manufacturing floors.
• Electrical rooms in commercial facilities that require safe isolation during preventive maintenance or repairs.
• Standby or emergency power arrangements where a rugged, dependable disconnect is needed.

Specifications

• Amperage Rating: 600A
• Product Type: Fused Disconnect Switch
• Brand: Eaton Cutler-Hammer
• Model: LK3R9FN