{"product_id":"sinofuse-rsz307-01-j4p-250a-750v-fuses-3-pieces","title":"Sinofuse RSZ307-01-J4P High-Speed Fuse, 250A 750V DC, aR Fast-Acting Semiconductor Protection - Pack of 3","description":"\u003cp\u003eThe Sinofuse RSZ307-01-J4P-250A is a professional-grade, high-speed DC fuse designed for the demanding requirements of power semiconductor protection. It is a critical component for Electric Vehicle (EV) traction systems, Battery Energy Storage Systems (BESS), and DC charging infrastructures. Engineered for high performance in a compact footprint, this fuse provides ultra-fast clearing of overcurrent and short-circuit faults to safeguard sensitive power electronics.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecialized DC Circuit Protection:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSpecifically rated at 750V DC, making it highly suitable for high-voltage battery arrays and industrial DC power distributions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-Fast Response (aR Class):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDesigned with an \"aR\" utilization category, ensuring superior protection for semiconductors by minimizing let-through energy (\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"3.065ex\" height=\"1.912ex\" role=\"img\" viewbox=\"0 -833.9 1354.8 844.9\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" 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transform=\"translate(590.2,363) scale(0.707)\"\u003e\u003cuse data-c=\"32\"\u003e\u003c\/use\u003e\u003c\/g\u003e\u003c\/g\u003e\u003cg data-mml-node=\"mi\" transform=\"translate(993.8,0)\"\u003e\u003cuse data-c=\"1D461\"\u003e\u003c\/use\u003e\u003c\/g\u003e\u003c\/g\u003e\u003c\/g\u003e\u003c\/svg\u003e) during fault conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomotive Grade Reliability:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eCompliant with GB\/T 31465 and CE standards, featuring excellent resistance to mechanical vibration and shock, ideal for mobile or high-vibration environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEfficient Thermal Management:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eOptimized internal design results in low power dissipation (48W at rated current) and a small temperature rise, increasing the longevity of surrounding components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVisual Fault Indication:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFeatures a clear visual indicator on the body for rapid status identification and simplified maintenance.\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\u003eXi'an Sinofuse Electric Co., Ltd.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel Number:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eRSZ307-01-J4P-250A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated Current:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e250 A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated Voltage:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e750 V DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUtilization Category:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eaR (Partial range semiconductor protection)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBreaking Capacity:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e≥ 50kA (L\/R = 5~10ms)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sinofuse","offers":[{"title":"Default Title","offer_id":48243564577047,"sku":null,"price":160.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/9210\/1655\/files\/sinofuse-sinofuse-rsz307-01-j4p-250a-750v-fuses-5-pieces-1212527266.jpg?v=1766428325","url":"https:\/\/www.apexonsupply.com\/products\/sinofuse-rsz307-01-j4p-250a-750v-fuses-3-pieces","provider":"Apexon Solutions LLC","version":"1.0","type":"link"}