Eaton / Cutler-Hammer FDPW365R – 400A, 3-Pole Branch Fusible Panel-Mount Switch – FDPW Series

Meet the Eaton / Cutler-Hammer FDPW365R — a rugged 400A, 3-Pole Branch Fusible Panel-Mount Switch from the FDPW Series. Designed for industrial-duty environments, it delivers dependable load isolation and overcurrent protection within switchboard and panelboard applications, helping you keep critical power systems safe and reliable.

• 400A current rating supports demanding feeders and large electrical loads, giving you solid headroom for shared power circuits.
• Three-pole design provides complete isolation of all live phases, enhancing safety during maintenance and servicing of three-phase systems.
• Branch fusible protection integrates switching and overcurrent protection in a single device, reducing panel complexity and simplifying protective coordination.
• Panel-mount construction enables straightforward integration into existing switchboards and panelboards, supporting efficient retrofits and new installations alike.
• Industrial-duty reliability built to withstand the rigors of demanding electrical environments, with the proven performance of the FDPW Series and a consistent footprint for system compatibility.

This FDPW365R is an ideal solution for facilities that require robust, code-compliant isolation and protection of large power feeds. It’s well-suited for manufacturing floors, processing plants, data-center support infrastructure, and other environments where reliable phase protection and quick disconnect capabilities are essential.

Use cases and benefits

• Primary or secondary protection in switchboards and panelboards for large motors, heating loads, and heavy feeders.
• Maintenance-friendly isolation points that keep downtime to a minimum while ensuring personnel safety.
• Form and function alignment with FDPW Series devices, enabling consistent replacement and streamlined panel design.

Practical guidance — for optimal performance, ensure correct fuse elements for a 400A, 3-pole configuration and verify compatibility with your panelboard’s rating and mounting footprint. Always follow applicable electrical codes and manufacturer wiring diagrams when integrating the FDPW365R into new or existing electrical distributions.