Eaton / Westinghouse FDPBS364J - 200A, 600V, 3-Pole Panelboard Switch / Switchboard Unit | AmpState

Meet the Eaton / Westinghouse FDPBS364J, a 200 A, 600 V, 3-pole fusible panelboard switch purpose-built for lighting and distribution panelboards. This isn’t just a disconnect—it’s a thoughtfully engineered protection solution that combines reliable load switching with built-in overcurrent protection when paired with the appropriate upstream protection and fuse class, helping your electrical system stay safe, organized, and code-compliant.

The 3-pole design actively disconnects all three hot legs, delivering safer maintenance and clearer fault isolation in commercial and light industrial panelboard configurations. Its fusible construction lets you tailor protection to your exact application by selecting the correct fuse class, achieving coordinated protection across the distribution network without adding extra protective devices inside the panelboard.

Why the FDPBS364J stands out

• Coordinated, configurable protection: Choose the fuse class to match upstream protection and achieve precise overcurrent protection across feeders and branches.
• Streamlined integration: Specifically designed for FDP-series panelboards, facilitating straightforward installation, layout, and serviceability.
• Trusted performance: From the established Eaton / Cutler-Hammer lineage, delivering dependable protection for lighting and distribution applications.
• Safe, comprehensive isolation: A true 3-pole disconnect that isolates all three phases for safer maintenance and faster fault identification.
• Ideal for both new installs and upgrades: Perfect for commercial spaces needing a dedicated fusible disconnect for feeders or branch circuits, or for retrofits to upgrade panelboard protection.

Technical snapshot

• Rating: 200 A (continuous)
• Voltage rating: 600 V maximum
• Poles: 3 (three-phase)
• Series: FDP (panelboard switch / switchboard unit for lighting and distribution panelboards)
• Part number: FDPBS364J

Installation and maintenance best practices

• Ensure proper protection coordination by matching upstream protection devices and the correct fuse class.
• Verify mounting fit and wiring arrangements within the FDP-series panelboard framework before installation.
• Regularly inspect connections and fuse components; replace only with the same class and rating to maintain protection integrity.
• Document the configuration for future maintenance to preserve the intended protection scheme and enable smooth upgrades or replacements.

For reliable, code-compliant panelboard protection with a proven 3-phase disconnect solution, the Eaton / Westinghouse FDPBS364J delivers clear advantages in lighting and distribution applications, helping you achieve organized, safe, and scalable electrical protection.