Eaton / Cutler-Hammer FDPWS363R – 100A, 3-Pole Branch Fusible Panel-Mount Switch – FDPWS Series

The Eaton / Cutler-Hammer FDPWS363R is a 100A, 3-Pole Branch Fusible Panel-Mount Switch from the FDPWS Series. Engineered for demanding electrical environments, it delivers reliable load isolation and overcurrent protection when and where you need it most in switchboards and panelboards.

What makes the FDPWS363R stand out

• Three-pole precision – A true 3-pole design disconnects all live lines in unison, ensuring balanced phase protection and safer maintenance with clear, lockable isolation.
• Panel-mount versatility – Designed to drop neatly into standard electrical enclosures, simplifying installation and reducing space constraints in crowded panels.
• Branch fusible protection – Fusible switching provides targeted protection at the feeder level, enabling fast fault interruption and downstream equipment safeguarding.
• 100A current rating – Suitable for medium-load distribution in industrial facilities, commercial buildings, and service entrances where dependable protection is essential.
• Rugged, industrial-duty construction – Built to withstand the realities of plant environments, including vibration and variable temperature, while maintaining consistent performance.
• Series compatibility – Part of the FDPWS Series, offering a cohesive path to scalable protection with other FDPWS components for streamlined maintenance and replacement.

Ideal use scenarios

• Panelboards and switchboards in manufacturing floors where frequent isolation of feeders is required for maintenance or fault response.
• Commercial electrical rooms that demand reliable, modular branch protection for multiple circuits.
• Distributive power feeds in data centers or processing facilities where rapid, safe disconnection of three-phase loads is critical.
• Feeder protection in retrofit projects that seek to upgrade protection without a full-panel replacement.

Technical snapshot

• Current rating: 100 A
• Pole configuration: 3-pole (three-phase)
• Mounting: Panel-mount
• Type: Branch fusible switch
• Series: FDPWS

Practical guidance for installation and use

Install the FDPWS363R in accordance with standard electrical practices and the FDPWS Series guidelines. Pair this switch with the appropriate fuses to achieve the desired protection level for your feeder circuits, and ensure clear isolation points for maintenance crews. Its panel-mount design simplifies integration into existing enclosures, helping you consolidate protective devices in a single, accessible location.

Why choose the Eaton FDPWS363R

Choosing the FDPWS363R means opting for a dependable, purpose-built solution from Eaton / Cutler-Hammer that aligns with established electrical distribution practices. Its 3-pole architecture provides comprehensive phase protection, while the fusible branch approach delivers precise, fast interruption to keep downstream equipment safe. For facilities operating with modular protection needs, the FDPWS Series offers a coherent family of devices that can be combined and scaled without sacrificing performance or compatibility.

Whether upgrading an aging panel or configuring a new distribution path, the FDPWS363R delivers targeted, reliable protection in a compact panel-mount package you can trust for consistent operation across demanding industrial environments.