{"product_id":"ferraz-shawmut-r300211-a070ud32li900-fuses","title":"Mersen A070UD32LI900 Protistor Fuse, 900A 700V AC, Size 32 aR, High-Speed Square Body with LI Bolted Contacts - Pack of 3","description":"\u003cp\u003eThe Mersen Protistor® A070UD32LI900 (Item Number H219785) is an ultra-fast acting semi-conductor fuse designed for the high-power protection of industrial electronic systems. With a significant rated current of 900A and a voltage rating of 700V AC, this Size 32 aR class fuse is engineered to provide superior protection for rectifiers, heavy-duty UPS units, and large motor drives. It is specifically optimized to minimize let-through energy (I²t), preventing catastrophic damage to sensitive power semiconductors such as thyristors and IGCTs during short-circuit events.\u003c\/p\u003e\n\u003cp\u003eThe A070UD32LI900 is constructed with a high-durability ceramic body and silver-plated copper LI-style (Bolted Blade) terminal contacts, ensuring low contact resistance and excellent heat dissipation. The internal design utilizes pure silver elements surrounded by high-purity silica sand for effective arc quenching and a high breaking capacity of 200kA. This fuse includes an integrated Type K mechanical striker for visual status indication, which can also be utilized for remote signaling via an auxiliary microswitch.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eMersen\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCatalog Number:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eA070UD32LI900\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Number:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eH219785\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmperage Rating:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e900A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e700V AC (IEC \/ UL)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterrupting Rating (Breaking Capacity):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e200kA at 700V AC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Class:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eaR (Ultra-Fast Acting)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Size:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e32\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Configuration:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eLI (Bolted Blades)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndication System:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIntegrated Mechanical Striker (K-Type)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-arcing I²t:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e275 kA²s\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal Clearing I²t at Rated Voltage:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e1,850 kA²s\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Dissipation at Rated Current:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e135W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards Compliance:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIEC 60269-4, UL 248-13 Recognized, RoHS Compliant\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ePack of 3\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv data-version=\"2.2.5\" data-event=\"v2\" id=\"whale-data-ext\"\u003e\u003c\/div\u003e","brand":"Ferraz Shawmut","offers":[{"title":"Default Title","offer_id":47416785305879,"sku":"A070UD32LI900","price":480.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/9210\/1655\/files\/ferraz-shawmut-a070ud32li900-3pcs-ferraz-shawmut-r300211-a070ud32li900-fuses-1212531873.jpg?v=1766705589","url":"https:\/\/www.apexonsupply.com\/products\/ferraz-shawmut-r300211-a070ud32li900-fuses","provider":"Apexon Solutions LLC","version":"1.0","type":"link"}