Eaton / Cutler-Hammer FDPWS363J – 100A, 3-Pole Branch Fusible Panel-Mount Switch – FDPWS Series

The Eaton / Cutler-Hammer FDPWS363J delivers robust, industrial-duty protection for switchboards and panelboards with a clean, integrated solution. As a 100A, 3-pole branch fusible panel-mount switch, it combines load isolation and overcurrent protection in a single, reliable device—designed to keep your critical equipment safe and your downtime to a minimum.

Why the FDPWS363J stands out

• Integrated protection and isolation in one compact unit. The FDPWS363J functions as both a disconnect switch and a fuse-protected branch, simplifying panel design and maintenance planning.
• 3-pole configuration streamlines multi-phase electrical systems, ensuring synchronized switching and dependable protection across all three conductors.
• 100A current rating provides strong, reliable protection for medium-scale loads common in manufacturing lines, service panels, and process equipment.
• Panel-mount versatility engineered for straightforward installation into existing switchboards and panelboards, reducing retrofit time and field wiring complexity.
• Industrial-grade durability built to perform in demanding environments where consistent isolation and protection are essential for safety and uptime.

Ideal applications and use cases

• Panelboard and switchboard assemblies in manufacturing facilities, where sub-feed protection and safe disconnection are required.
• Motor control centers and equipment racks that demand reliable load isolation during routine maintenance or fault isolation.
• Industrial distribution systems needing a compact, dependable branch-fusible solution without sacrificing accessibility or ease of service.
• Repairs or retrofits of legacy panels where adding a modern, fused switching element enhances protection without overhauling the entire panel.

What you get with this model

• Clear safety and protection by combining a mechanically operable switch with fusible protection for each branch circuit.
• Simple integration with existing FDPWS-series architectures, enabling consistent protection strategies across panels and boards.
• Operational clarity straightforward actuation and isolation behavior makes troubleshooting and maintenance more efficient.

Practical tips for deployment

• Plan panel layout to accommodate the 3-pole footprint and ensure accessible handle operation for routine disconnection.
• Verify compatible fuse types and replacement procedures per your panel’s maintenance plan to maintain protection integrity.
• Coordinate with your panel designer to align the FDPWS363J with existing wiring schemes, ensuring clean routing and minimal cross-talk between circuits.

For teams building or upgrading switchboards and panelboards, the Eaton / Cutler-Hammer FDPWS363J offers a dependable, space-efficient solution that delivers trusted protection where it matters most. With its 100A, 3-pole configuration and panel-mount design, it’s a practical choice for enhancing safety, simplifying maintenance, and maintaining steady, protected power for critical loads.