{"product_id":"sinofuse-rsz307-01-j4p-550a-750v-fuses-3-pieces","title":"Sinofuse RSZ307-01-J4P High-Speed Fuse, 550A 750V DC, aR Fast-Acting Semiconductor Protection - Pack of 3","description":"\u003cp\u003eThe Sinofuse RSZ307-01-J4P-550A is a high-performance, square-body DC high-speed fuse engineered for superior circuit protection in Electric Vehicles (EV) and energy storage systems. Designed by Xi'an Sinofuse Electric Co., Ltd., this fuse provides critical short-circuit protection for power batteries, drive systems, and auxiliary circuits. It is characterized by its compact volume, low temperature rise, and exceptional breaking capacity.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Speed DC Protection:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSpecifically designed for DC applications up to 750V, ensuring rapid interruption of fault currents in power electronics and battery systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eaR Utilization Category:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFeatures a partial-range protection (aR) characteristic, optimized for safeguarding semiconductors by providing high-speed clearing and low let-through energy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReliable for Transportation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eOptimized to meet GB\/T 31465 and automotive safety standards, offering robust resistance to mechanical shock and vibrations (up to 10g acceleration).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEfficient Mounting:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eUtilizes a bolted tag (J4P) mounting style, designed for secure M8 screw\/nut installation with a recommended torque of 10N.m to ensure stable electrical contact.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated Indication:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEquipped with a built-in visual fault indicator to allow maintenance personnel to quickly identify blown fuses, reducing system downtime.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eXi'an Sinofuse Electric Co., Ltd.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel Series:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eRSZ307-01-J4P\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated Current:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e550 A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated Voltage:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e750V DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUtilization Category:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eaR (High-speed semiconductor protection)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBreaking Capacity:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e≥ 50kA (L\/R = 5~10ms)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard Compliance:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eCE, RoHS, GB\/T 31465\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Type:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eBolted Tag (Double-hole blade for M8 bolts)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating\/Storage Temperature:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e-40°C to +120°C (Storage up to +70°C for packaging)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePollution Degree:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eLevel III\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sinofuse","offers":[{"title":"Default Title","offer_id":48243569426711,"sku":null,"price":180.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/9210\/1655\/files\/sinofuse-sinofuse-rsz307-01-j4p-550a-750v-fuses-3-pieces-1212527264.jpg?v=1766428201","url":"https:\/\/www.apexonsupply.com\/products\/sinofuse-rsz307-01-j4p-550a-750v-fuses-3-pieces","provider":"Apexon Solutions LLC","version":"1.0","type":"link"}