{"product_id":"sinofuse-rs309-md-evd250a-500vdc-fuses-3-pieces","title":"SINOFUSE RS309-MD-EVD-250A High-Speed Fuse, 250A 500VDC, Bolted-Blade EV\/HEV Protection - Pack of 3","description":"\u003cp\u003eThe SINOFUSE RS309-MD-EVD-250A is a high-speed, bolted-blade DC fuse specifically designed for the protection of Electric Vehicle (EV) and Hybrid Electric Vehicle (HEV) systems. Manufactured by Xi'an Sinofuse Electric Co., Ltd., this fuse is engineered to provide high-performance circuit interruption, safeguarding power semiconductors and battery systems against high-energy short circuits and overcurrent conditions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDesign and Durability\u003c\/strong\u003e The fuse features a specialized EVD bolted-blade design, which provides superior mechanical connection stability and electrical conductivity. This housing is constructed from high-strength ceramic, offering excellent thermal management and arc containment. Inside, high-purity silver melting elements ensure precise performance and long-term reliability under the high vibration and wide temperature fluctuations found in automotive environments.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePerformance Characteristics\u003c\/strong\u003e With a 250A rating and a 500VDC operating voltage, the RS309-MD-EVD belongs to the aR utilization category. It is characterized by its ultra-fast triggering and low \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 let-through energy, which minimizes the thermal stress on downstream power components such as inverters and DC\/DC converters. Its high breaking capacity of 50kA ensures the safe quenching of DC arcs in high-power applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTypical Applications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery Power Distribution:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eProtection of main and auxiliary circuits in EV battery packs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Conversion Systems:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSafeguarding on-board chargers (OBC) and DC\/DC conversion modules.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectric Drive Systems:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eProtection for motor controllers and high-voltage inverters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnergy Storage Systems (ESS):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eCircuit protection for commercial and industrial battery storage units.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eStandards and Certification\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomotive Integrity:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eMeets ISO 8820 and GB\/T 31465 standards for automotive-grade fuses.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectrical Safety:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eComplies with IEC 60269-4 and GB 13539.4 for semiconductor protection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvironmental Quality:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFully RoHS compliant and CE certified.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sinofuse","offers":[{"title":"Default Title","offer_id":48189063561495,"sku":null,"price":65.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/9210\/1655\/files\/sinofuse-sinofuse-rs309-md-evd-250a-500vdc-fuses-3-pieces-1212527386.jpg?v=1766672078","url":"https:\/\/www.apexonsupply.com\/products\/sinofuse-rs309-md-evd250a-500vdc-fuses-3-pieces","provider":"Apexon Solutions LLC","version":"1.0","type":"link"}