{"product_id":"ferraz-shawmut-d301073-a055ud32li1400-fuses","title":"Mersen A055UD32LI1400 Protistor Fuse, 1400A 550V AC, Size 32 aR, High-Speed Square Body with LI Bolted Contacts - Pack of 3","description":"\u003cp\u003eThe Mersen Protistor® A055UD32LI1400 (Item Number M219789) is a robust, ultra-fast acting square body fuse-link designed for the protection of high-power semiconductor devices. With a high rated current of 1400A and a voltage rating of 550V AC, this Size 32 aR class fuse is specifically optimized for industrial-scale power conversion systems. It is ideally suited for protecting large rectifiers, DC drives, and high-capacity static transfer switches where ultra-low let-through energy (I²t) and superior current limitation are required to safeguard sensitive components like thyristors and power modules.\u003c\/p\u003e\n\u003cp\u003eEngineered for extreme reliability, the A055UD32LI1400 features a premium ceramic body and silver-plated copper LI-style (Bolted Blade) terminal contacts for maximum electrical conductivity and efficient thermal management. The fuse internal design utilizes pure silver elements and high-purity silica sand for rapid arc quenching, enabling a high breaking capacity of 200kA. This model is equipped with an integrated Type K mechanical striker, providing visual indication of operation and allowing for the mounting of auxiliary microswitches for remote system signaling.\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\u003eA055UD32LI1400\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Number:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eM219789\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmperage Rating:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e1400A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e550V AC (IEC) \/ 600V AC (UL)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterrupting Rating (Breaking Capacity):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e200kA at 550V 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\u003e1,150 kA²s\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal Clearing I²t at Rated Voltage:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e7,000 kA²s\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Dissipation at Rated Current:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e190W\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":47406465286423,"sku":"A055UD32LI1400","price":480.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/9210\/1655\/files\/ferraz-shawmut-a055ud32li1400-3pcs-ferraz-shawmut-d301073-a055ud32li1400-fuses-1212532059.jpg?v=1766624651","url":"https:\/\/www.apexonsupply.com\/products\/ferraz-shawmut-d301073-a055ud32li1400-fuses","provider":"Apexon Solutions LLC","version":"1.0","type":"link"}