{"product_id":"eaton-cutler-hammer-fdp365bj-400a-3-pole-vertical-main-fusible-panel-mount-switch-fdp-series","title":"Eaton \/ Cutler-Hammer FDP365BJ – 400A, 3-Pole Vertical Main Fusible Panel-Mount Switch – FDP Series","description":"\u003cdiv\u003e\n\u003cp\u003eEngineered for demanding industrial environments, the Eaton \/ Cutler-Hammer FDP365BJ is a 400A, 3-pole vertical main fusible panel-mount switch from the FDP Series. Designed to deliver reliable load isolation and precise overcurrent protection, it’s the ideal choice for switchboard and panelboard applications that require robust, code-aware main switching in a vertical configuration.\u003c\/p\u003e \u003cp\u003eWhy operators choose the FDP365BJ:\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eHigh-current, three-phase protection:\u003c\/strong\u003e 400A rating in a compact vertical form supports main isolation for large feeders in manufacturing, processing, and complex facilities.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVertical panel-mount versatility:\u003c\/strong\u003e Built for vertical installation, it integrates smoothly into standard panel layouts, enabling efficient routing and neater bus assemblies.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eReliable fusible protection:\u003c\/strong\u003e As a fusible main switch, it provides fast fault interruption to protect downstream equipment, wiring, and connected loads.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeries compatibility and legacy support:\u003c\/strong\u003e Part of the FDP Series with direct compatibility to existing FDP installations and legacy Westinghouse FDP vertical main switches for easier modernization or expansion.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eIndustrial-duty construction:\u003c\/strong\u003e Designed for continuous operation in demanding environments, with proven performance in panelboards and switchboards.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eTypical use cases:\u003c\/p\u003e \u003cul\u003e \u003cli\u003ePrimary main isolation in 3-phase switchboards and panelboards for factories, warehouses, and processing plants.\u003c\/li\u003e \u003cli\u003eUpgrading older FDP-based installations where a vertical, fusible main switch is required to restore or expand capacity.\u003c\/li\u003e \u003cli\u003eApplications that demand clear, manual disconnect with integrated protection to satisfy safety and reliability standards.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eKey benefits you’ll notice in daily operation:\u003c\/p\u003e \u003cul\u003e \u003cli\u003eClear, positive isolation during maintenance, reducing downtime and exposure to live components.\u003c\/li\u003e \u003cli\u003eTargeted protection for feeders and downstream equipment, helping avoid unplanned outages in critical processes.\u003c\/li\u003e \u003cli\u003eSimple integration with existing FDP Series hardware, reducing complexity during replacements or upgrades.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eTechnical snapshot:\u003c\/p\u003e \u003cul\u003e \u003cli\u003eCurrent rating: 400A\u003c\/li\u003e \u003cli\u003ePole configuration: 3-pole\u003c\/li\u003e \u003cli\u003eMounting: Vertical panel-mount\u003c\/li\u003e \u003cli\u003eType: Main fusible switch, FDP Series\u003c\/li\u003e \u003cli\u003eCompatibility: FDP Series, legacy Westinghouse FDP vertical main switches\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Eaton \/ Cutler-Hammer","offers":[{"title":"Default Title","offer_id":46361523355810,"sku":"FDP365BJ","price":10.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/panel_mount_switches_p1_60e5c520-d679-4924-ad3d-f70d1d5de481.png?v=1764704065","url":"https:\/\/www.ampstate.com\/products\/eaton-cutler-hammer-fdp365bj-400a-3-pole-vertical-main-fusible-panel-mount-switch-fdp-series","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}