{"product_id":"mersen-a070ud32ki500-protistor-fuse-500a-700v-ac-size-32-ar-high-speed-square-body-with-ki-bolted-contacts-pack-of-3","title":"Mersen A070UD32KI500 Protistor Fuse, 500A 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® A070UD32KI500 (Item Number J300193) is a high-performance, ultra-fast acting square body fuse-link engineered for the protection of power semiconductor devices. With a 500A current rating and 700V AC capacity, this Size 32 aR class fuse is a critical safety component for high-demand industrial power systems, including rectifiers, high-power converters, and motor drives. It is designed to provide exceptionally low let-through energy (I²t) and excellent peak current limitation, shielding sensitive semiconductors like thyristors and diodes from high-energy short-circuit faults.\u003c\/p\u003e\n\u003cp\u003eConstructed with a high-strength ceramic housing and silver-plated copper KI-style bolted contacts (Metric Bolted Studs), the fuse ensures superior thermal management and mechanical stability. Its internal engineering utilizes pure silver elements and high-purity silica sand for rapid arc extinguishing, achieving a high breaking capacity of 200kA. This model features an integrated mechanical K-type striker for local visual indication of fuse operation and is compatible with microswitches for remote system diagnostics.\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\u003eA070UD32KI500\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Number:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eJ300193\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmperage Rating:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e500A\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\u003e38 kA²s\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal Clearing I²t at Rated Voltage:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e250 kA²s\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Dissipation at Rated Current:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e85W\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 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":51764770570519,"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-a070ud32ki500-protistor-fuse-500a-700v-ac-size-32-ar-high-speed-square-body-with-ki-bolted-contacts-pack-of-3-1213988334.png?v=1767275917","url":"https:\/\/www.apexonsupply.com\/products\/mersen-a070ud32ki500-protistor-fuse-500a-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"}