{"product_id":"sinofuse-rsz307-5-w7p-high-speed-semiconductor-fuse-series-1000-2500a-1200vdc-ul-1000vdc-iec","title":"SINOFUSE RSZ307-5-W7P High-Speed Semiconductor Fuse Series, 1000-2500A, 1200VDC UL \/ 1000VDC IEC","description":"\u003cp\u003eThe SINOFUSE RSZ307-5-W7P is a high-speed semiconductor fuse series covering rated currents from 1000A to 2500A. The series is rated DC1200V under UL requirements and DC1000V under IEC requirements, with an aR utilization category and a 100kA breaking capacity. All listed models use the same flat-terminal bolted construction and are intended for short-circuit and backup protection in power, rectification, and power-conversion equipment. The series provides ten verified current ratings, allowing procurement teams to select the required model according to circuit current, I²t performance, and power-loss requirements.\u003c\/p\u003e\n\n\u003ch2\u003eRSZ307-5-W7P Series Overview\u003c\/h2\u003e\n\u003cp\u003eThe RSZ307-5-W7P family is designed as a common mechanical and electrical platform with rated current as the primary model differentiator. The manufacturer specifies performance with reference to IEC 60269 and UL 248.13. The complete verified range includes 1000A, 1250A, 1400A, 1500A, 1700A, 1800A, 2000A, 2200A, 2400A, and 2500A models. The manufacturer also states UL certification and RoHS compliance for the series.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; table-layout: fixed; border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 13px; margin-top: 16px; font-family: sans-serif;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"width: 32%; padding: 8px 10px; background-color: #f2f2f2; font-weight: bold; color: #333; text-align: left; vertical-align: top; white-space: normal; overflow-wrap: anywhere; word-break: normal;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"width: 68%; padding: 8px 10px; background-color: #f2f2f2; font-weight: bold; color: #333; text-align: left; vertical-align: top; white-space: normal; overflow-wrap: anywhere; word-break: normal;\"\u003eSeries Data\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top; border-bottom: 1px solid #e0e0e0; white-space: normal; overflow-wrap: anywhere; word-break: normal;\"\u003eRated Voltage\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top; border-bottom: 1px solid #e0e0e0; white-space: normal; overflow-wrap: anywhere; word-break: normal;\"\u003eDC1200V (UL) \/ DC1000V (IEC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top; border-bottom: 1px solid #e0e0e0; white-space: normal; overflow-wrap: anywhere; word-break: normal;\"\u003eRated Current Range\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top; border-bottom: 1px solid #e0e0e0; white-space: normal; overflow-wrap: anywhere; word-break: normal;\"\u003e1000-2500A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top; border-bottom: 1px solid #e0e0e0; white-space: normal; overflow-wrap: anywhere; word-break: normal;\"\u003eUtilization Category\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top; border-bottom: 1px solid #e0e0e0; white-space: normal; overflow-wrap: anywhere; word-break: normal;\"\u003eaR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top; border-bottom: 1px solid #e0e0e0; white-space: normal; overflow-wrap: anywhere; word-break: normal;\"\u003eBreaking Capacity\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top; border-bottom: 1px solid #e0e0e0; white-space: normal; overflow-wrap: anywhere; word-break: normal;\"\u003e100kA, time constant 10-15ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top; border-bottom: 1px solid #e0e0e0; white-space: normal; overflow-wrap: anywhere; word-break: normal;\"\u003eStandards \/ Compliance\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top; border-bottom: 1px solid #e0e0e0; white-space: normal; overflow-wrap: anywhere; word-break: normal;\"\u003eIEC 60269; UL 248.13; UL certified; RoHS compliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top; border-bottom: 1px solid #e0e0e0; white-space: normal; overflow-wrap: anywhere; word-break: normal;\"\u003eConnection \/ Mounting\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top; border-bottom: 1px solid #e0e0e0; white-space: normal; overflow-wrap: anywhere; word-break: normal;\"\u003eFlat-terminal bolted connection; M10 stud and nut installation; recommended torque 21±1N·m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top; border-bottom: 1px solid #e0e0e0; white-space: normal; overflow-wrap: anywhere; word-break: normal;\"\u003eOperating Conditions\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top; border-bottom: 1px solid #e0e0e0; white-space: normal; overflow-wrap: anywhere; word-break: normal;\"\u003eNormal ambient temperature -5°C to 40°C; permitted range -40°C to 85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003e\u003cstrong\u003eTechnical data reference:\u003c\/strong\u003e SINOFUSE RSZ307-5-W7P 1200V Series High-Speed Fuse Selection Specification, document ZR\/YC-0231-01 A3.\u003c\/p\u003e\n\n\u003ch2\u003eRSZ307-5-W7P Model Selection\u003c\/h2\u003e\n\u003cp\u003eSelect the required RSZ307-5-W7P model primarily by rated current, then compare the manufacturer-specified pre-arcing I²t, total fusing I²t, and power loss. The listed I²t values are specified at DC1220V. SINOFUSE recommends that long-term operating current should not exceed 80% of the fuse rated current under normal operating conditions. Confirm the complete MPN and the electrical and mechanical requirements of the protected equipment before replacement or ordering.\u003c\/p\u003e\n\n\u003ctable style=\"width: 100%; table-layout: fixed; border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 13px; margin-top: 16px; font-family: sans-serif;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"width: 40%; padding: 8px 10px; background-color: #f2f2f2; font-weight: bold; color: #333; text-align: left; vertical-align: top; white-space: normal; overflow-wrap: anywhere; word-break: normal;\"\u003eExact MPN\u003c\/th\u003e\n\u003cth style=\"width: 15%; padding: 8px 10px; background-color: #f2f2f2; font-weight: bold; color: #333; text-align: left; vertical-align: top; white-space: normal; overflow-wrap: anywhere; word-break: normal;\"\u003eRated Current\u003c\/th\u003e\n\u003cth style=\"width: 45%; padding: 8px 10px; background-color: #f2f2f2; font-weight: bold; color: #333; text-align: left; vertical-align: top; white-space: normal; overflow-wrap: anywhere; word-break: normal;\"\u003eElectrical Performance\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top; border-bottom: 1px solid #e0e0e0; white-space: normal; overflow-wrap: anywhere; word-break: normal;\"\u003eRSZ307-5-W7P-1000A1200V\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top; border-bottom: 1px solid #e0e0e0; white-space: normal; overflow-wrap: anywhere; word-break: normal;\"\u003e1000A\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top; border-bottom: 1px solid #e0e0e0; white-space: normal; overflow-wrap: anywhere; word-break: normal;\"\u003ePre-arcing I²t: 371kA²s; total I²t: 1073kA²s; power loss: 38W at 0.5In \/ 179W at In\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top; border-bottom: 1px solid #e0e0e0; white-space: normal; overflow-wrap: anywhere; word-break: normal;\"\u003eRSZ307-5-W7P-1250A1200V\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top; border-bottom: 1px solid #e0e0e0; white-space: normal; overflow-wrap: anywhere; word-break: normal;\"\u003e1250A\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top; border-bottom: 1px solid #e0e0e0; white-space: normal; overflow-wrap: anywhere; word-break: normal;\"\u003ePre-arcing I²t: 590kA²s; total I²t: 1710kA²s; power loss: 47W at 0.5In \/ 228W at In\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top; border-bottom: 1px solid #e0e0e0; white-space: normal; overflow-wrap: anywhere; word-break: normal;\"\u003eRSZ307-5-W7P-1400A1200V\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top; border-bottom: 1px solid #e0e0e0; white-space: normal; overflow-wrap: anywhere; word-break: normal;\"\u003e1400A\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top; border-bottom: 1px solid #e0e0e0; white-space: normal; overflow-wrap: anywhere; word-break: normal;\"\u003ePre-arcing I²t: 780.5kA²s; total I²t: 2264kA²s; power loss: 52W at 0.5In \/ 248W at In\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top; border-bottom: 1px solid #e0e0e0; white-space: normal; overflow-wrap: anywhere; word-break: normal;\"\u003eRSZ307-5-W7P-1500A1200V\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top; border-bottom: 1px solid #e0e0e0; white-space: normal; overflow-wrap: anywhere; word-break: normal;\"\u003e1500A\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top; border-bottom: 1px solid #e0e0e0; white-space: normal; overflow-wrap: anywhere; word-break: normal;\"\u003ePre-arcing I²t: 942kA²s; total I²t: 2731kA²s; power loss: 54W at 0.5In \/ 258W at In\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top; border-bottom: 1px solid #e0e0e0; white-space: normal; overflow-wrap: anywhere; word-break: normal;\"\u003eRSZ307-5-W7P-1700A1200V\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top; border-bottom: 1px solid #e0e0e0; white-space: normal; overflow-wrap: anywhere; word-break: normal;\"\u003e1700A\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top; border-bottom: 1px solid #e0e0e0; white-space: normal; overflow-wrap: anywhere; word-break: normal;\"\u003ePre-arcing I²t: 1244kA²s; total I²t: 3606kA²s; power loss: 61W at 0.5In \/ 290W at In\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top; border-bottom: 1px solid #e0e0e0; white-space: normal; overflow-wrap: anywhere; word-break: normal;\"\u003eRSZ307-5-W7P-1800A1200V\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top; border-bottom: 1px solid #e0e0e0; white-space: normal; overflow-wrap: anywhere; word-break: normal;\"\u003e1800A\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top; border-bottom: 1px solid #e0e0e0; white-space: normal; overflow-wrap: anywhere; word-break: normal;\"\u003ePre-arcing I²t: 1480kA²s; total I²t: 4292kA²s; power loss: 62W at 0.5In \/ 296W at In\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top; border-bottom: 1px solid #e0e0e0; white-space: normal; overflow-wrap: anywhere; word-break: normal;\"\u003eRSZ307-5-W7P-2000A1200V\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top; border-bottom: 1px solid #e0e0e0; white-space: normal; overflow-wrap: anywhere; word-break: normal;\"\u003e2000A\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top; border-bottom: 1px solid #e0e0e0; white-space: normal; overflow-wrap: anywhere; word-break: normal;\"\u003ePre-arcing I²t: 1854kA²s; total I²t: 5375kA²s; power loss: 69W at 0.5In \/ 323W at In\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top; border-bottom: 1px solid #e0e0e0; white-space: normal; overflow-wrap: anywhere; word-break: normal;\"\u003eRSZ307-5-W7P-2200A1200V\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top; border-bottom: 1px solid #e0e0e0; white-space: normal; overflow-wrap: anywhere; word-break: normal;\"\u003e2200A\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top; border-bottom: 1px solid #e0e0e0; white-space: normal; overflow-wrap: anywhere; word-break: normal;\"\u003ePre-arcing I²t: 2360kA²s; total I²t: 6835kA²s; power loss: 73W at 0.5In \/ 347W at In\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top; border-bottom: 1px solid #e0e0e0; white-space: normal; overflow-wrap: anywhere; word-break: normal;\"\u003eRSZ307-5-W7P-2400A1200V\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top; border-bottom: 1px solid #e0e0e0; white-space: normal; overflow-wrap: anywhere; word-break: normal;\"\u003e2400A\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top; border-bottom: 1px solid #e0e0e0; white-space: normal; overflow-wrap: anywhere; word-break: normal;\"\u003ePre-arcing I²t: 2871kA²s; total I²t: 8327kA²s; power loss: 78W at 0.5In \/ 354W at In\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top; border-bottom: 1px solid #e0e0e0; white-space: normal; overflow-wrap: anywhere; word-break: normal;\"\u003eRSZ307-5-W7P-2500A1200V\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top; border-bottom: 1px solid #e0e0e0; white-space: normal; overflow-wrap: anywhere; word-break: normal;\"\u003e2500A\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 10px; color: #555; line-height: 1.5; vertical-align: top; border-bottom: 1px solid #e0e0e0; white-space: normal; overflow-wrap: anywhere; word-break: normal;\"\u003ePre-arcing I²t: 3330kA²s; total I²t: 9320kA²s; power loss: 88W at 0.5In \/ 375W at In\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eVerified Applications\u003c\/h2\u003e\n\u003cp\u003eSINOFUSE specifies the RSZ307-5-W7P series for power, rectification, and power-conversion applications, where the fuse provides equipment short-circuit and backup protection. The aR utilization category should be considered together with the protected circuit requirements when selecting the appropriate current rating.\u003c\/p\u003e\n\n\u003ch2\u003eB2B Sourcing and Replacement Support\u003c\/h2\u003e\n\u003cp\u003eApexon Supply provides B2B sourcing support for the SINOFUSE RSZ307-5-W7P series. For replacement sourcing, confirm the complete manufacturer MPN, rated current, required voltage rating, mechanical connection, and relevant circuit-protection requirements before ordering.\u003c\/p\u003e\n\n\u003cp\u003eFor an RFQ, submit the required RSZ307-5-W7P MPN, quantity, equipment or application details, and any technical requirements that need verification. Apexon Supply can assist with model identification, manufacturer-document-based specification review, and sourcing alignment for industrial procurement requirements.\u003c\/p\u003e","brand":"Sinofuse","offers":[{"title":"RSZ307-5-W7P-1000A 1200V","offer_id":67685577752855,"sku":null,"price":450.0,"currency_code":"USD","in_stock":true},{"title":"RSZ307-5-W7P-1250A 1200V","offer_id":67685577785623,"sku":null,"price":460.0,"currency_code":"USD","in_stock":true},{"title":"RSZ307-5-W7P-1400A 1200V","offer_id":67685577818391,"sku":null,"price":470.0,"currency_code":"USD","in_stock":true},{"title":"RSZ307-5-W7P-1500A 1200V","offer_id":67685577851159,"sku":null,"price":480.0,"currency_code":"USD","in_stock":true},{"title":"RSZ307-5-W7P-1700A 1200V","offer_id":67685577883927,"sku":null,"price":490.0,"currency_code":"USD","in_stock":true},{"title":"RSZ307-5-W7P-1800A 1200V","offer_id":67685577916695,"sku":null,"price":500.0,"currency_code":"USD","in_stock":true},{"title":"RSZ307-5-W7P-2000A 1200V","offer_id":67685577949463,"sku":null,"price":510.0,"currency_code":"USD","in_stock":true},{"title":"RSZ307-5-W7P-2200A 1200V","offer_id":67685577982231,"sku":null,"price":520.0,"currency_code":"USD","in_stock":true},{"title":"RSZ307-5-W7P-2400A 1200V","offer_id":67685578014999,"sku":null,"price":530.0,"currency_code":"USD","in_stock":true},{"title":"RSZ307-5-W7P-2500A 1200V","offer_id":67685578047767,"sku":null,"price":540.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/9210\/1655\/files\/ProductImage_SINOFUSERSZ307-5-W7Phigh-speedsemiconductorfuseseries_1000-2500A_1200VDCUL.webp?v=1791350550","url":"https:\/\/www.apexonsupply.com\/products\/sinofuse-rsz307-5-w7p-high-speed-semiconductor-fuse-series-1000-2500a-1200vdc-ul-1000vdc-iec","provider":"Apexon Solutions LLC","version":"1.0","type":"link"}