{"product_id":"mersen-a130ud73tti450-c301049-450a-ar-fuses-3-pieces","title":"Mersen A130UD73TTI450 (C301049) Protistor Fuse, 450A 1250VAC, High-Speed Square Body Size 73 - Pack of 3","description":"\u003cp\u003eThe Mersen A130UD73TTI450 (C301049) is a premium Protistor® series high-speed square body fuse meticulously engineered for the protection of power semiconductor devices. This Size 73 fuse-link is designed for high-voltage applications, offering a current rating of 450A and a voltage capacity of up to 1300VAC (UL). It provides an ideal solution for critical equipment such as thyristors, diodes, and IGBT devices, where ultra-fast reaction times and high reliability are essential for preventing catastrophic component failure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-Fast Semiconductor Protection:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eClassified under the \"aR\" utilization category, this fuse is optimized for high-speed performance with exceptionally low I²t let-through energy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRobust Interrupting Capacity:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eCapable of safely breaking high fault currents up to 126kA, ensuring superior protection for high-power industrial circuits.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced Internal Construction:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eBuilt with silver-plated contact surfaces and non-magnetic hardware to maximize conductivity and reduce heat generation. Die-cut elements are embedded in solidified sand to control arcing behavior.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMechanical Fault Indication:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFeatures an integrated striker system that provides a visual trip-indication and can trigger an optional microswitch for remote fault detection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustrial Standard Mounting:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEquipped with UNC threaded flush-end terminals, providing a secure and stable bolted connection for heavy-duty power blocks.\u003c\/li\u003e\n\u003c\/ul\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\u003eCatalogue Number:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eA130UD73TTI450\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Number:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eC301049\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent Rating:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e450A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e1250VAC (IEC) \/ 1300VAC (UL)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBreaking Capacity:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e126kA at 1250VAC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUtilization Category:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eaR (High-Speed Semiconductor Protection)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody Size:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e73\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection Style:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFlush Ends (UNC Threaded)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMelting I²t:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e35.5 kA²s\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearing I²t:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e290 kA²s (At rated voltage)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Dissipation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e99W at rated current\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody Material:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eCeramic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e3 Pieces\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Mersen","offers":[{"title":"Default Title","offer_id":50398256627991,"sku":null,"price":700.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/9210\/1655\/files\/mersen-mersen-a130ud73tti630-f301052-630a-ar-fuses-3-pieces-1212532524.jpg?v=1766626058","url":"https:\/\/www.apexonsupply.com\/products\/mersen-a130ud73tti450-c301049-450a-ar-fuses-3-pieces","provider":"Apexon Solutions LLC","version":"1.0","type":"link"}