Eaton / Cutler-Hammer FDPW366MR – 600A, 3-Pole Main Fusible Panel-Mount Switch – FDPW Series

The Eaton / Cutler-Hammer FDPW366MR is a 600A, 3-pole main fusible panel-mount switch built for demanding switchboard and panelboard environments. As part of the FDPW Series, it delivers dependable load isolation and overcurrent protection where uptime and safety matter most in industrial settings.

Key advantages

• 600A, 3-pole configuration provides a single-point disconnect for three-phase power, enabling clear, decisive protection for your primary distribution circuits.
• Panel-mount design facilitates clean, integrated installation within standard electrical panels and switchboards.
• Main fusible protection interrupts fault currents at the source, helping safeguard downstream equipment and wiring from overloads.
• Rugged FDPW Series construction is engineered for industrial duty, offering reliable performance in demanding environments.
• Clear, actionable isolation supports safe maintenance practices by providing a definitive disconnect point for the protected circuits.

What this means for your operation

• Minimize downtime with a durable, easy-to-operate main switch that sits directly in your power distribution path.
• Improve electrical safety by ensuring rapid fault isolation at the distribution level, reducing exposure to fault currents.
• Streamline panel design and layout by using a purpose-built, panel-mount mains switch designed for high-current applications.

Ideal applications

• Industrial facilities and manufacturing floors requiring robust main protection for three-phase power.
• Switchboards and panelboards where a reliable, fusible disconnect is essential for routine maintenance and fault containment.
• Electrical infrastructure in utility rooms and process environments that demand predictable, durable protection components.

How it works

The FDPW366MR integrates a main fusible switch with a three-pole configuration to isolate all three phases in a single device. When a fault or overload occurs, the fusible element opens the circuit, providing rapid protection and a clear shutdown point for the protected panel. This straightforward topology supports straightforward fault analysis and safer maintenance procedures.

Specifications at a glance

• FDPW366MR
• 600 A
• 3-pole
• Panel-mount
• Main fusible switch
• FDPW
• Eaton / Cutler-Hammer

Practical tips for installation and care

• Plan panel space to accommodate a 3-pole mains switch with fusible elements and ensure proper clearance for safe operation and maintenance.
• Coordinate with your panel design to place the FDPW366MR at the main distribution point where quick isolation is most effective.
• Follow site safety guidelines when replacing fusible elements or performing maintenance to prevent accidental energization.