{"product_id":"sinofuse-rs309-mf-s275a-cylindrical-bolt-on-fuse","title":"SINOFUSE RS309-MF-S275A High-Speed Cylindrical Bolt-On Fuse, 275 A, 700 V AC\/DC (IEC) \/ 750 V DC (UL)","description":"\u003cp\u003eThe \u003cstrong\u003eSINOFUSE RS309-MF-S275A\u003c\/strong\u003e is a 275 A high-speed cylindrical bolt-on fuse in the RS309-MF-S series. It has an aR utilization category, size code 6TA, and M10 bolt mounting. Its voltage ratings are 700 V AC\/DC under IEC and 750 V DC under UL.\u003c\/p\u003e\n\u003ctable style=\"width: 100%; 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;\"\u003eModel\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top;\"\u003eRS309-MF-S275A\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;\"\u003e275 A\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;\"\u003eIEC: 700 V AC\/DC; UL: 750 V DC\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;\"\u003eBreaking capacity\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top;\"\u003eAC: 100 kA; DC: 50 kA at a time constant ≤ 15 ms\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;\"\u003eI²t values\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top;\"\u003ePre-arcing: 15,300 A²s; total clearing: 49,700 A²s. Datasheet test values were measured under DC conditions, with time constants and connections referenced to IEC 60269 \/ UL 248.\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;\"\u003ePower dissipation\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top;\"\u003e51 W\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;\"\u003e6TA\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\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top;\"\u003eM10 bolts; recommended tightening torque 21 ± 1 N·m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eTypical applications:\u003c\/strong\u003e Short-circuit protection in electric vehicle drive systems, power conversion equipment, energy storage systems, variable-frequency controllers, and chargers, subject to application-specific selection and protection coordination.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eB2B sourcing and replacement support:\u003c\/strong\u003e Submit the exact model and equipment requirements to Apexon Supply for a sourcing enquiry. Include the existing fuse label, mounting dimensions, circuit voltage, and protection requirements for replacement comparisons.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRequest a quotation:\u003c\/strong\u003e Send your RFQ for SINOFUSE RS309-MF-S275A with the required quantity, destination, and documentation requirements.\u003c\/p\u003e","brand":"Sinofuse","offers":[{"title":"1 pcs","offer_id":67741136486679,"sku":null,"price":65.0,"currency_code":"USD","in_stock":true},{"title":"3 pcs","offer_id":67741136519447,"sku":null,"price":180.0,"currency_code":"USD","in_stock":true},{"title":"6 pcs","offer_id":67741136552215,"sku":null,"price":340.0,"currency_code":"USD","in_stock":true},{"title":"10 pcs","offer_id":67741136584983,"sku":null,"price":550.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/9210\/1655\/files\/sinofuse-rs309-mf-s275a-high-speed-cylindrical-bolt-on-fuse.webp?v=1791804556","url":"https:\/\/www.apexonsupply.com\/products\/sinofuse-rs309-mf-s275a-cylindrical-bolt-on-fuse","provider":"Apexon Solutions LLC","version":"1.0","type":"link"}