{"product_id":"mersen-a070ud32ki350-protistor-fuse-350a-700v-ac-size-32-ar-high-speed-square-body-with-ki-bolted-contacts-pack-of-3","title":"Mersen A070UD32KI350 Protistor Fuse, 350A 700V AC, Size 32 aR, High-Speed Square Body with KI Bolted Contacts - Pack of 3","description":"\u003cdiv class=\"detailmodule_html\"\u003e\n\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\n\u003cp\u003eThe Mersen Protistor® A070UD32KI350 (Item Number F300190) is an ultra-fast acting square body fuse-link designed specifically for the protection of power semiconductor devices. With a 350A rating and 700V AC capacity, this Size 32 aR class fuse is a critical safety component for industrial power systems, including high-power converters, motor drives, and rectifiers. It is engineered to provide exceptionally low let-through energy (I²t) and superior peak current limitation, shielding sensitive power electronics like thyristors and diodes from high-energy short-circuit faults.\u003c\/p\u003e\n\u003cp\u003eThe fuse features a high-performance ceramic housing and silver-plated copper KI-style bolted contacts (Metric Bolted Studs), ensuring high mechanical stability and low contact resistance. Its internal construction utilizes pure silver elements and high-purity silica sand for rapid arc extinguishing and a high breaking capacity of 200kA. This model includes an integrated mechanical K-type striker to provide a clear local indication of fuse operation and can be equipped with a microswitch for remote diagnostic 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\u003eA070UD32KI350\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Number:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eF300190\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmperage Rating:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e350A\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\u003eKI (Metric Bolted Studs)\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\u003e13 kA²s\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal Clearing I²t at Rated Voltage:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e86 kA²s\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Dissipation at Rated Current:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e65W\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\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"whale-data-ext\" data-event=\"v2\" data-version=\"2.2.5\"\u003e\u003c\/div\u003e","brand":"Ferraz Shawmut","offers":[{"title":"Default Title","offer_id":51764768669975,"sku":null,"price":495.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/9210\/1655\/files\/ferraz-shawmut-general-industrial-fuses-mersen-a070ud32ki350-protistor-fuse-350a-700v-ac-size-32-ar-high-speed-square-body-with-ki-bolted-contacts-pack-of-3-1213988337.png?v=1767275977","url":"https:\/\/www.apexonsupply.com\/products\/mersen-a070ud32ki350-protistor-fuse-350a-700v-ac-size-32-ar-high-speed-square-body-with-ki-bolted-contacts-pack-of-3","provider":"Apexon Solutions LLC","version":"1.0","type":"link"}