{"product_id":"sinofuse-rs309-mf-80a-750v-fuses-2-pieces","title":"Sinofuse RS309-MF-80A RS309-MF High-Speed Square Body Fuse, 700V IEC\/750V UL, 80A aR, Size 4SB - Pack of 2","description":"\u003cp\u003eOverview: The Sinofuse RS309-MF-80A is a high-speed square body semiconductor fuse for AC\/DC systems up to 700 V (IEC) \/ 750 V (UL). Rated 80 A, it offers high interrupting capability and fast fault clearing for inverters, rectifiers, DC drives, and DC common bus protection. This item is sold as a pack of 2 units.\u003c\/p\u003e\n\u003cp\u003eKey Features:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRated voltage: 700 V (IEC) \/ 750 V (UL)\u003c\/li\u003e\n\u003cli\u003eHigh breaking capacity: AC 100 kA; DC 50 kA (time constant \u0026lt;15 ms)\u003c\/li\u003e\n\u003cli\u003eaR utilization category for semiconductor short‑circuit protection\u003c\/li\u003e\n\u003cli\u003eSize code 4SB square body with slotted blade tags\u003c\/li\u003e\n\u003cli\u003eM8 bolted mounting; recommended torque 12 ±1 N·m\u003c\/li\u003e\n\u003cli\u003eCompliance: UL248, IEC 60269; RoHS compliant\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eTechnical Specifications:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRated current: 80 A\u003c\/li\u003e\n\u003cli\u003eI²t (A²s): pre‑arcing 430; clearing 2080 (from RS309-MF table)\u003c\/li\u003e\n\u003cli\u003ePower dissipation at In: 20 W\u003c\/li\u003e\n\u003cli\u003eBody size\/dimensions (4SB, mm): A=110, B=24, C=66, D=84, E=95.5, F=9, G=18, H=3.2\u003c\/li\u003e\n\u003cli\u003eTermination: blade ends, M8 hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eApplications:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eProtection of power semiconductors in inverters and rectifiers\u003c\/li\u003e\n\u003cli\u003eDC drives and DC common bus\u003c\/li\u003e\n\u003cli\u003eBattery charging and power conversion equipment\u003c\/li\u003e\n\u003cli\u003eIndustrial power electronics requiring rapid fault interruption\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sinofuse","offers":[{"title":"Default Title","offer_id":47820375032087,"sku":null,"price":60.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/9210\/1655\/files\/sinofuse-sinofuse-rs309-mf-80a-750v-fuses-2-pieces-1212528089.jpg?v=1766661611","url":"https:\/\/www.apexonsupply.com\/products\/sinofuse-rs309-mf-80a-750v-fuses-2-pieces","provider":"Apexon Solutions LLC","version":"1.0","type":"link"}