{"product_id":"eaton-cutler-hammer-fdpw365mj-400a-3-pole-main-fusible-panel-mount-switch-fdpw-series","title":"Eaton \/ Cutler-Hammer FDPW365MJ – 400A, 3-Pole Main Fusible Panel-Mount Switch – FDPW Series","description":"\u003cdiv\u003e\n\u003cp\u003eThe Eaton \/ Cutler-Hammer FDPW365MJ is a robust 400A, 3-pole main fusible panel-mount switch designed for industrial-duty environments. Built for switchboard and panelboard installations, this device provides reliable load isolation combined with dependable overcurrent protection in a single, compact package.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eWhy choose the FDPW365MJ for your electrical protection needs\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eHigh-current main disconnect\u003c\/strong\u003e at 400A, capable of handling demanding industrial loads while delivering clean, decisive isolation during maintenance or emergencies.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e3-pole configuration\u003c\/strong\u003e ensures full-phase control and synchronized disconnection, reducing the risk of partial energization and improving system safety.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePanel-mount design\u003c\/strong\u003e tailored for seamless integration into standard switchboards and panelboards, helping to streamline installation and reduce panel footprint.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eFDPW Series reliability\u003c\/strong\u003e built on Eaton\/Cutler-Hammer engineering, delivering dependable performance in environments where downtime is costly and safety is non-negotiable.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eKey specifications and capabilities\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCurrent rating:\u003c\/strong\u003e 400 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-pole configuration for full-line protection\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Panel-mount, designed to fit into standard switchboards and panelboards\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e FDPW Series, a tested solution for industrial isolation and protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal applications and use cases\u003c\/h3\u003e \u003cul\u003e \u003cli\u003ePrimary disconnects in \u003cstrong\u003eswitchboards and panelboards\u003c\/strong\u003e where reliable isolation and overcurrent protection are essential.\u003c\/li\u003e \u003cli\u003eIndustrial facilities with high-current feeders, such as manufacturing lines, processing plants, and pumping or motor control installations.\u003c\/li\u003e \u003cli\u003eLocations where consolidating protection and isolation into a single device simplifies maintenance and reduces panel complexity.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical insights for installation and operation\u003c\/h3\u003e \u003cul\u003e \u003cli\u003ePlan for \u003cstrong\u003epanel integration\u003c\/strong\u003e by verifying enclosure clearance and ensuring compatibility with your panel’s rating and fuse links.\u003c\/li\u003e \u003cli\u003eUse appropriate fuse elements aligned with the FDPW Series design to achieve the intended overcurrent protection.\u003c\/li\u003e \u003cli\u003eDuring installation, confirm secure mounting and proper lug torque to maintain reliable electrical contact and minimize heat rise during operation.\u003c\/li\u003e \u003cli\u003eFor maintenance, establish a routine to inspect for signs of wear, corrosion, or overheating around connections and the mounting interface.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhat makes this solution stand out\u003c\/h3\u003e \u003cp\u003eUnlike standalone non-fusible disconnects, the FDPW365MJ combines main isolation with fusible protection in a panel-ready package. This consolidation simplifies procurement, reduces panel footprint, and supports faster commissioning in demanding environments. By delivering a clear, definitive open-circuit condition, it helps technicians diagnose faults quickly and safely, improving uptime and reliability across critical electrical systems.\u003c\/p\u003e \u003cp\u003eWho benefits most from the FDPW365MJ? Engineers and maintenance teams responsible for industrial power distribution, operations managers seeking dependable protection for high-current feeders, and integrators who need a proven, space-efficient main switch for panelboard installations. With its 400A capacity and 3-pole construction, it is well-suited to demanding applications where safe, reliable load isolation and overcurrent protection are non-negotiable.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Eaton \/ Cutler-Hammer","offers":[{"title":"Default Title","offer_id":46361521881250,"sku":"FDPW365MJ","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_de8bb941-a849-42ec-b1f8-a097c13b48c7.png?v=1764704024","url":"https:\/\/www.ampstate.com\/products\/eaton-cutler-hammer-fdpw365mj-400a-3-pole-main-fusible-panel-mount-switch-fdpw-series","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}