{"product_id":"sinofuse-rs309-mf-s300a-750v-fuses-3-pieces","title":"Sinofuse RS309-MF-S300A RS309-MF-S Series High-Speed Fuse, 300A, 700VAC\/750VDC, Cylindrical Bolt-on Type - 5 Pack","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThe Sinofuse RS309-MF-S300A is a professional-grade, high-speed fuse from the RS309-MF-S series, specifically designed for the protection of power semiconductors and electric vehicle (EV) systems. This cylindrical bolt-on fuse features a compact footprint, low I²t values for superior protection, and high breaking capacity. It is engineered to withstand high-intensity mechanical vibration and thermal shocks, making it ideal for demanding automotive and industrial power applications. This listing is for a pack of 5 units.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Speed Protection:\u003c\/strong\u003e Optimized aR utilization category for rapid short-circuit and overcurrent protection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRobust Design:\u003c\/strong\u003e Excellent resistance to mechanical vibration, impact, and chemical loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Temperature Range:\u003c\/strong\u003e Reliable performance across broad thermal variations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEV Ready:\u003c\/strong\u003e Specifically suitable for EV drive systems, power conversion, energy storage, and charging systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards Compliance:\u003c\/strong\u003e Meets UL248, IEC60269, ISO8820, and RoHS requirements; CE and UL certified.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eElectric Vehicle (EV) Power Systems\u003c\/li\u003e\n\u003cli\u003ePower Conversion and Inverters\u003c\/li\u003e\n\u003cli\u003eEnergy Storage Systems (ESS)\u003c\/li\u003e\n\u003cli\u003eVariable Frequency Drives (VFD)\u003c\/li\u003e\n\u003cli\u003eEV Charging Stations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer\u003c\/th\u003e\n\u003ctd\u003eSinofuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel Number\u003c\/th\u003e\n\u003ctd\u003eRS309-MF-S300A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eRS309-MF-S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRated Current\u003c\/th\u003e\n\u003ctd\u003e300A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRated Voltage\u003c\/th\u003e\n\u003ctd\u003e700V AC\/DC (IEC) \/ 750V DC (UL)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUtilization Category\u003c\/th\u003e\n\u003ctd\u003eaR (High Speed)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBreaking Capacity\u003c\/th\u003e\n\u003ctd\u003e100kA AC \/ 50kA DC (≤15ms)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePre-arcing I²t\u003c\/th\u003e\n\u003ctd\u003e23,000 A²s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTotal Clearing I²t\u003c\/th\u003e\n\u003ctd\u003e59,900 A²s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower Loss\u003c\/th\u003e\n\u003ctd\u003e56W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting Type\u003c\/th\u003e\n\u003ctd\u003eBolt-on (M10 Screws Recommended)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Code\u003c\/th\u003e\n\u003ctd\u003e6TA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Sinofuse","offers":[{"title":"Default Title","offer_id":48171603001623,"sku":null,"price":110.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/9210\/1655\/files\/sinofuse-sinofuse-rs309-mf-s-300a-750v-fuses-3-pieces-1212527571.jpg?v=1766671149","url":"https:\/\/www.apexonsupply.com\/products\/sinofuse-rs309-mf-s300a-750v-fuses-3-pieces","provider":"Apexon Solutions LLC","version":"1.0","type":"link"}