{"product_id":"sinofuse-rs309-md-400a-500vdc-fuses","title":"SINOFUSE RS309-MD-400A RS309-MD Series High-Speed Fuse, 400A, 500VDC","description":"\u003cp\u003eThe SINOFUSE RS309-MD-400A is a high-capacity cylindrical bolt-connected high-speed fuse optimized for the protection of power semiconductors in demanding industrial environments. Designed for electric vehicle drive systems and large-scale power conversion, it provides rapid fault isolation with a 50kA DC breaking capacity and low energy let-through characteristics.\u003c\/p\u003e\n\n\u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 13px; margin-top: 20px; font-family: sans-serif;\"\u003e\n  \u003ctr style=\"border-bottom: 1px solid #e0e0e0;\"\u003e\n    \u003ctd style=\"padding: 8px 10px; background-color: #f9f9f9; font-weight: bold; width: 35%; color: #333; line-height: 1.5; vertical-align: top;\"\u003eProduct ID (MPN)\u003c\/td\u003e\n    \u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top;\"\u003eRS309-MD-400A\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"border-bottom: 1px solid #e0e0e0;\"\u003e\n    \u003ctd style=\"padding: 8px 10px; background-color: #f9f9f9; font-weight: bold; width: 35%; color: #333; line-height: 1.5; vertical-align: top;\"\u003eRated Voltage\u003c\/td\u003e\n    \u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top;\"\u003eAC\/DC 500V\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"border-bottom: 1px solid #e0e0e0;\"\u003e\n    \u003ctd style=\"padding: 8px 10px; background-color: #f9f9f9; font-weight: bold; width: 35%; color: #333; line-height: 1.5; vertical-align: top;\"\u003eRated Current\u003c\/td\u003e\n    \u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top;\"\u003e400A\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"border-bottom: 1px solid #e0e0e0;\"\u003e\n    \u003ctd style=\"padding: 8px 10px; background-color: #f9f9f9; font-weight: bold; width: 35%; color: #333; line-height: 1.5; vertical-align: top;\"\u003eBreaking Capacity\u003c\/td\u003e\n    \u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top;\"\u003eAC 200kA \/ DC 50kA (τ ≤ 15ms)\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"border-bottom: 1px solid #e0e0e0;\"\u003e\n    \u003ctd style=\"padding: 8px 10px; background-color: #f9f9f9; font-weight: bold; width: 35%; color: #333; line-height: 1.5; vertical-align: top;\"\u003eUtilization Category\u003c\/td\u003e\n    \u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top;\"\u003eaR\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"border-bottom: 1px solid #e0e0e0;\"\u003e\n    \u003ctd style=\"padding: 8px 10px; background-color: #f9f9f9; font-weight: bold; width: 35%; color: #333; line-height: 1.5; vertical-align: top;\"\u003eSize Code\u003c\/td\u003e\n    \u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top;\"\u003e6ZA\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"border-bottom: 1px solid #e0e0e0;\"\u003e\n    \u003ctd style=\"padding: 8px 10px; background-color: #f9f9f9; font-weight: bold; width: 35%; color: #333; line-height: 1.5; vertical-align: top;\"\u003ePre-arcing I²t\u003c\/td\u003e\n    \u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top;\"\u003e31000 A²s\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"border-bottom: 1px solid #e0e0e0;\"\u003e\n    \u003ctd style=\"padding: 8px 10px; background-color: #f9f9f9; font-weight: bold; width: 35%; color: #333; line-height: 1.5; vertical-align: top;\"\u003eTotal Clearing I²t\u003c\/td\u003e\n    \u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top;\"\u003e108500 A²s\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"border-bottom: 1px solid #e0e0e0;\"\u003e\n    \u003ctd style=\"padding: 8px 10px; background-color: #f9f9f9; font-weight: bold; width: 35%; color: #333; line-height: 1.5; vertical-align: top;\"\u003eRated Power Loss\u003c\/td\u003e\n    \u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top;\"\u003e66W\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"border-bottom: 1px solid #e0e0e0;\"\u003e\n    \u003ctd style=\"padding: 8px 10px; background-color: #f9f9f9; font-weight: bold; width: 35%; color: #333; line-height: 1.5; vertical-align: top;\"\u003eMounting Bolt\u003c\/td\u003e\n    \u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top;\"\u003eM10 (Recommended Torque: 21±1N.m)\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"border-bottom: 1px solid #e0e0e0;\"\u003e\n    \u003ctd style=\"padding: 8px 10px; background-color: #f9f9f9; font-weight: bold; width: 35%; color: #333; line-height: 1.5; vertical-align: top;\"\u003eStandards\u003c\/td\u003e\n    \u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top;\"\u003eUL248, IEC60269, CE, TUV, RoHS\u003c\/td\u003e\n  \u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Sinofuse","offers":[{"title":"1 pcs","offer_id":53025539064087,"sku":null,"price":40.0,"currency_code":"USD","in_stock":true},{"title":"3 pcs","offer_id":53025539096855,"sku":null,"price":110.0,"currency_code":"USD","in_stock":true},{"title":"6 pcs","offer_id":53025539129623,"sku":null,"price":210.0,"currency_code":"USD","in_stock":true},{"title":"12 pcs","offer_id":53025539162391,"sku":null,"price":410.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/9210\/1655\/files\/sinofuse-sinofuse-rs309-md-400a-500vdc-fuses-5-pieces-1212527584.jpg?v=1766429165","url":"https:\/\/www.apexonsupply.com\/products\/sinofuse-rs309-md-400a-500vdc-fuses","provider":"Apexon Solutions LLC","version":"1.0","type":"link"}