{"product_id":"sinofuse-rs309-md-evs630a-c-500vdc-fuses-3-pieces","title":"SINOFUSE RS309-MD-EVS-630A-C Fuse, 630A 500VDC, High-Speed Bolted-Blade, EV\/HEV Protection - Pack of 3","description":"\u003cp\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e The SINOFUSE RS309-MD-EVS-630A-C occupies the high-capacity end of the RS309 series, designed specifically for heavy-duty overcurrent protection in Electric Vehicle (EV) and Hybrid Electric Vehicle (HEV) power architectures. Manufactured by Xi'an Sinofuse Electric Co., Ltd., this 630A high-speed fuse is engineered to safeguard the main battery bus and high-power distribution systems against the catastrophic effects of short circuits and high-magnitude faults.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEngineering and Durability\u003c\/strong\u003e Constructed with a premium reinforced ceramic body, the RS309-MD-EVS 630A-C features internal high-purity silver melting elements that provide precise and ultra-fast interruption. The \"C\" configuration indicates a specific bolted-blade mounting style designed for low-impedance electrical contact and robust mechanical stability. Every component is optimized to endure the extreme thermal cycles and high-intensity vibration profiles characteristic of heavy electric transit and industrial machinery.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAdvanced Protection Characteristics\u003c\/strong\u003e With a substantial 630A current rating and a 500VDC voltage capacity, this fuse provides exceptionally fast response times. It effectively limits the \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, protecting expensive downstream power electronics—such as high-power IGBT inverters and motor controllers—from thermal damage during a fault. It offers a high breaking capacity of 50kA, ensuring reliable arc quenching even in high-energy DC circuits.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePrimary Applications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy EV Main Protection:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIdeal for the main power bus in electric buses, trucks, and large-scale industrial electric vehicles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Distribution Units (PDU):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eProtection for high-current distribution manifolds within high-voltage drivetrains.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrid-Scale Energy Storage:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSafeguarding large battery racks and multi-megawatt Power Conversion Systems (PCS).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Speed DC Charging:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eInfrastructure-side protection for ultra-fast charging stations.\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 Compliance:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAdheres to IEC 60269-4, ISO 8820, GB\/T 31465, and GB 13539.4.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvironmental Reliability:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFully RoHS compliant.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety Certification:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eCE marked for global distribution.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sinofuse","offers":[{"title":"Default Title","offer_id":48177714856215,"sku":null,"price":118.0,"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-500a-c-fuse-500a-500vdc-high-speed-bolted-blade-ev-hev-protection-pack-of-3-1213453838.png?v=1766980449","url":"https:\/\/www.apexonsupply.com\/products\/sinofuse-rs309-md-evs630a-c-500vdc-fuses-3-pieces","provider":"Apexon Solutions LLC","version":"1.0","type":"link"}