{"product_id":"mersen-a070ud32li350-protistor-fuse-350a-700v-ac-size-32-ar-high-speed-square-body-with-li-bolted-contacts-pack-of-3","title":"Mersen A070UD32LI350 Protistor Fuse, 350A 700V AC, Size 32 aR, High-Speed Square Body with LI Bolted Contacts - Pack of 3","description":"\u003cdiv class=\"detailmodule_html\"\u003e\n\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\n\u003cp\u003eThe Mersen Protistor® A070UD32LI350 (Item Number X219775) is an ultra-fast acting square body fuse-link designed for the high-performance protection of power semiconductor devices. Rated at 350A and 700V AC, this Size 32 aR class fuse is engineered for industrial applications requiring rigorous protection against overcurrent, such as semiconductor rectifiers, DC drives, and UPS systems. It is characterized by its ability to provide extremely low let-through energy (I²t) and excellent peak current limitation, effectively shielding sensitive electronics like thyristors and diodes from fault damage.\u003c\/p\u003e\n\u003cp\u003eThe fuse construction features a durable ceramic body and silver-plated copper LI-style bolted blade contacts, ensuring low power loss and high mechanical stability. Its internal architecture utilizes pure silver elements and high-purity silica sand for superior arc quenching, supporting a high breaking capacity of 200kA. This model comes integrated with a Type K mechanical striker, providing a reliable visual indication of fuse operation and the option to trigger remote monitoring through 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\u003eA070UD32LI350\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Number:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eX219775\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\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\u003e14.5 kA²s\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal Clearing I²t at Rated Voltage:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e97 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":51764873429271,"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-a070ud32li350-protistor-fuse-350a-700v-ac-size-32-ar-high-speed-square-body-with-li-bolted-contacts-pack-of-3-1213988329.png?v=1767275711","url":"https:\/\/www.apexonsupply.com\/products\/mersen-a070ud32li350-protistor-fuse-350a-700v-ac-size-32-ar-high-speed-square-body-with-li-bolted-contacts-pack-of-3","provider":"Apexon Solutions LLC","version":"1.0","type":"link"}