{"product_id":"sinofuse-rs309-md-evs350a-c-500vdc-fuses-3-pieces","title":"SINOFUSE RS309-MD-EVS-350A-C Fuse, 350A 500VDC, High-Speed Bolted-Blade, EV\/HEV Protection - Pack of 3","description":"\u003cp\u003eThe SINOFUSE RS309-MD-EVS-350A-C is a specialized high-speed bolted-blade fuse engineered for the protection of high-voltage DC systems within Electric Vehicles (EV) and Hybrid Electric Vehicles (HEV). Developed by Xi'an Sinofuse Electric Co., Ltd., this fuse is designed to deliver reliable overcurrent protection for critical battery circuits and power conversion modules, ensuring the safe isolation of electrical faults.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePrecision Engineering\u003c\/strong\u003e This fuse features a high-density ceramic body that provides excellent insulation and heat dissipation capabilities. The internal high-purity silver melting elements are optimized for ultra-fast response times. The \"C\" configuration provides a robust bolted-blade mounting interface, which ensures low contact resistance and maximum mechanical stability against the constant vibrations and thermal shocks common in automotive and industrial environments.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAdvanced Circuit Protection\u003c\/strong\u003e With a 350A current rating and a 500VDC capacity, the RS309-MD-EVS series belongs to the aR utilization category. It is specifically designed to protect power semiconductors—such as MOSFETs and IGBTs—by limiting the 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\" class=\"ant-dropdown-trigger\"\u003e\u003cdefs\u003e\u003cpath id=\"MJX-1-TEX-I-1D43C\" d=\"M43 1Q26 1 26 10Q26 12 29 24Q34 43 39 45Q42 46 54 46H60Q120 46 136 53Q137 53 138 54Q143 56 149 77T198 273Q210 318 216 344Q286 624 286 626Q284 630 284 631Q274 637 213 637H193Q184 643 189 662Q193 677 195 680T209 683H213Q285 681 359 681Q481 681 487 683H497Q504 676 504 672T501 655T494 639Q491 637 471 637Q440 637 407 634Q393 631 388 623Q381 609 337 432Q326 385 315 341Q245 65 245 59Q245 52 255 50T307 46H339Q345 38 345 37T342 19Q338 6 332 0H316Q279 2 179 2Q143 2 113 2T65 2T43 1Z\"\u003e\u003c\/path\u003e\u003cpath id=\"MJX-1-TEX-N-32\" d=\"M109 429Q82 429 66 447T50 491Q50 562 103 614T235 666Q326 666 387 610T449 465Q449 422 429 383T381 315T301 241Q265 210 201 149L142 93L218 92Q375 92 385 97Q392 99 409 186V189H449V186Q448 183 436 95T421 3V0H50V19V31Q50 38 56 46T86 81Q115 113 136 137Q145 147 170 174T204 211T233 244T261 278T284 308T305 340T320 369T333 401T340 431T343 464Q343 527 309 573T212 619Q179 619 154 602T119 569T109 550Q109 549 114 549Q132 549 151 535T170 489Q170 464 154 447T109 429Z\"\u003e\u003c\/path\u003e\u003cpath id=\"MJX-1-TEX-I-1D461\" d=\"M26 385Q19 392 19 395Q19 399 22 411T27 425Q29 430 36 430T87 431H140L159 511Q162 522 166 540T173 566T179 586T187 603T197 615T211 624T229 626Q247 625 254 615T261 596Q261 589 252 549T232 470L222 433Q222 431 272 431H323Q330 424 330 420Q330 398 317 385H210L174 240Q135 80 135 68Q135 26 162 26Q197 26 230 60T283 144Q285 150 288 151T303 153H307Q322 153 322 145Q322 142 319 133Q314 117 301 95T267 48T216 6T155 -11Q125 -11 98 4T59 56Q57 64 57 83V101L92 241Q127 382 128 383Q128 385 77 385H26Z\"\u003e\u003c\/path\u003e\u003c\/defs\u003e\u003cg stroke=\"currentColor\" fill=\"currentColor\" stroke-width=\"0\" transform=\"scale(1,-1)\"\u003e\u003cg data-mml-node=\"math\"\u003e\u003cg data-mml-node=\"msup\"\u003e\u003cg data-mml-node=\"mi\"\u003e\u003cuse data-c=\"1D43C\"\u003e\u003c\/use\u003e\u003c\/g\u003e\u003cg data-mml-node=\"mn\" 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 a fault. It offers a 50kA breaking capacity, effectively quenching high-energy DC arcs and preventing catastrophic damage to downstream electronics.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePrimary Applications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEV Battery Packs:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eMain circuit and branch protection for high-voltage energy storage systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Distribution Units (PDU):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eProtection for high-current distribution circuits in electric drivetrains.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDC\/DC Converters \u0026amp; Inverters:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSafeguarding power electronic interfaces and motor drives.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustrial Energy Storage:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eProtection for commercial-grade battery arrays and energy management systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eStandards and Compliance\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTechnical Standards:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eCompliant with IEC 60269-4 and GB 13539.4 for semiconductor protection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomotive Standards:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAdheres to ISO 8820 and GB\/T 31465 requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvironmental \u0026amp; Safety:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eRoHS compliant and CE certified for global markets.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sinofuse","offers":[{"title":"Default Title","offer_id":48177717870871,"sku":null,"price":76.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/9210\/1655\/files\/sinofuse-general-industrial-fuses-sinofuse-rs309-md-evs-high-speed-fuse-200a-500vdc-ev-hev-power-semiconductor-protection-pack-of-3-1213450980.png?v=1777867520","url":"https:\/\/www.apexonsupply.com\/products\/sinofuse-rs309-md-evs350a-c-500vdc-fuses-3-pieces","provider":"Apexon Solutions LLC","version":"1.0","type":"link"}