{"product_id":"abb-md40f3-40a-3p-750v-safety-switch","title":"ABB MD40F3 40A 3P 750V Safety Switch, Fusible, Non-Fusible | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe ABB MD40F3 40A 3P 750V Safety Switch is your reliable solution for safe equipment disconnect and isolation at the point of use. Built for retrofit projects and maintenance planning, this switch helps you keep critical part numbers consistent while upgrading or servicing essential machinery.\u003c\/p\u003e \u003ch2\u003eWhy the MD40F3 stands out\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFusible and Non-Fusible configurations\u003c\/strong\u003e in one part number — choose integrated overcurrent protection when needed, or a simple, blow-open isolation switch for maintenance access.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e3-pole design\u003c\/strong\u003e supports balanced, three-phase power distribution, ensuring clean, predictable disconnection across all lines.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e750V voltage rating\u003c\/strong\u003e makes it suitable for industrial power environments, delivering dependable performance under demanding loads.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e40 A current rating\u003c\/strong\u003e covers a wide range of motors, pumps, conveyors, and other equipment common in manufacturing and processing facilities.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number consistency\u003c\/strong\u003e simplifies inventory and maintenance planning, reducing order errors during retrofits or replacements.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAccessible from AmpState\u003c\/strong\u003e with support to verify fit and compatibility, so you can buy with confidence.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal applications and scenarios\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eEquipment disconnects for motors, fans, or pumps during scheduled maintenance or emergency servicing.\u003c\/li\u003e \u003cli\u003ePoint-of-use isolation in control panels, switchgear upgrades, or safety interlock projects.\u003c\/li\u003e \u003cli\u003eRetrofit projects where keeping the MD40F3 part number streamlines ordering, spare parts, and downtime planning.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhat to know before you buy\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eDecide between the fusible option (for in-line protection with compatible fuses) or the non-fusible option (for straightforward isolation without integrated fusing).\u003c\/li\u003e \u003cli\u003eEnsure the installation matches a 3-pole, 40 A, 750V configuration to align with your circuit design and safety requirements.\u003c\/li\u003e \u003cli\u003eIf you’re unsure about compatibility, AmpState offers guidance to confirm fit and reduce the risk of misorders.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eSpecifications at a glance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eManufacturer: ABB\u003c\/li\u003e \u003cli\u003ePart number: MD40F3\u003c\/li\u003e \u003cli\u003eType: Safety Switch (Fusible \/ Non-Fusible)\u003c\/li\u003e \u003cli\u003eAmperage: 40 A\u003c\/li\u003e \u003cli\u003ePoles: 3\u003c\/li\u003e \u003cli\u003eVoltage: 750V\u003c\/li\u003e \u003cli\u003eAvailability: From AmpState\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46413193904290,"sku":"MD40F3","price":10.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/abb-md40f3-40a-3p-750v-safety-switch-fusible-non-ampstate-switches-841.webp?v=1789049890","url":"https:\/\/www.ampstate.com\/products\/abb-md40f3-40a-3p-750v-safety-switch","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}