{"product_id":"delta-electronics-efc1248df-f00-fan","title":"Delta Electronics EFC1248DF-F00 DC Axial Fan 48VDC 0.33A 4-Wire","description":"\u003cstyle\u003e.nxs-industrial-product-page{--industrial-navy:#082f49;--industrial-blue:#0b4f7c;--industrial-blue-2:#0f6ea8;--industrial-blue-3:#1784c1;--industrial-cyan:#38bdf8;--steel-blue:#dcebf5;--steel-blue-2:#edf6fb;--steel-line:#c9dce9;--surface:#ffffff;--surface-soft:#f7fbfe;--text-main:#173042;--text-muted:#5e7382;--shadow-soft:0 10px 30px rgba(8,47,73,0.08);--shadow-hover:0 16px 36px rgba(8,79,124,0.15);--radius-lg:14px;--radius-md:10px;}.nxs-industrial-product-page,.nxs-industrial-product-page *{margin:0;padding:0;box-sizing:border-box;font-family:Arial,Helvetica,sans-serif;}.nxs-industrial-product-page{background-color:#f3f8fb;background-image:linear-gradient(180deg,#eef6fb 0,#f7fafc 320px,#eef3f7 100%),linear-gradient(rgba(15,110,168,0.025) 1px,transparent 1px),linear-gradient(90deg,rgba(15,110,168,0.025) 1px,transparent 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(prefers-reduced-motion:reduce){.nxs-industrial-product-page,.nxs-industrial-product-page *,.nxs-industrial-product-page *::before,.nxs-industrial-product-page *::after{transition:none !important;}}\u003c\/style\u003e\n\u003cdiv class=\"nxs-industrial-product-page\"\u003e\n\u003cdiv class=\"container\"\u003e\u003cmain\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eDelta Electronics\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eEFC1248DF-F00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Category\u003c\/td\u003e\n\u003ctd\u003eDC Axial Fan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Series\u003c\/td\u003e\n\u003ctd\u003eEFC Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFan Type\u003c\/td\u003e\n\u003ctd\u003eDC Brushless Axial Cooling Fan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Voltage\u003c\/td\u003e\n\u003ctd\u003e48 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertified Listed Current\u003c\/td\u003e\n\u003ctd\u003e0.33 A (330 mA; Delta CSA certification record)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCalculated Electrical Power\u003c\/td\u003e\n\u003ctd\u003e15.84 W (48 V x 0.33 A; calculated from listed ratings)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eListed Frame Dimensions\u003c\/td\u003e\n\u003ctd\u003e120 x 120 x 32 mm (exact-model supplier specification)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cdiv class=\"features\"\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e48 VDC Brushless Cooling\u003c\/h3\u003e\n\u003cp\u003eDelta EFC1248DF-F00 is a 48 VDC axial cooling fan. Delta's CSA certification record identifies EFC1248DF at 330 mA and expressly includes the F00 suffix; the same electrical rating appears in complete-model listings.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e120 mm Square Frame\u003c\/h3\u003e\n\u003cp\u003eMultiple exact-model suppliers specify a 120 x 120 x 32 mm housing. Other listings state a 38 mm depth, so the fan thickness and mounting clearance must be confirmed before equipment selection.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eF00 Speed-Feedback Function\u003c\/h3\u003e\n\u003cp\u003eDelta's part-number documentation defines F00 as a frequency-generator output for monitoring fan rotation. It is functionally different from the R00 rotation-detector option.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eFour-Wire Fan Assembly\u003c\/h3\u003e\n\u003cp\u003eComplete-model product records and photographs identify a four-wire connection with a four-pin plug. The exact wire order, plug keying and any additional control function must be matched to the installed equipment.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eElectrical Load Reference\u003c\/h3\u003e\n\u003cp\u003eAt the certified listed values of 48 VDC and 0.33 A, calculated electrical power is 15.84 W. This calculation is not a separate manufacturer-confirmed typical or maximum operating-power specification.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003ePerformance Verification\u003c\/h3\u003e\n\u003cp\u003eSome aftermarket listings state 4000 RPM and 200 CFM, but an exact-model Delta performance curve was not established. These values should be verified before use in airflow or thermal design calculations.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e48 VDC telecommunications equipment cooling\u003c\/li\u003e\n\u003cli\u003eServer and networking equipment ventilation\u003c\/li\u003e\n\u003cli\u003eIndustrial control enclosure forced-air cooling\u003c\/li\u003e\n\u003cli\u003ePower conversion and power supply thermal management\u003c\/li\u003e\n\u003cli\u003eElectronic equipment with fan speed-monitoring inputs\u003c\/li\u003e\n\u003cli\u003eIndustrial computer chassis airflow\u003c\/li\u003e\n\u003cli\u003eRack-mounted electronic equipment ventilation\u003c\/li\u003e\n\u003cli\u003eMaintenance of compatible EFC1248DF-F00 cooling assemblies\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003ePurchase Information\u003c\/h2\u003e\n\u003cp\u003eWe support online purchase of the Delta Electronics EFC1248DF-F00 DC Axial Fan. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is Delta Electronics EFC1248DF-F00?\u003c\/strong\u003e\u003cbr\u003eEFC1248DF-F00 is a Delta Electronics DC brushless axial cooling fan. The manufacturer certification identifies the EFC1248DF family at 48 VDC and 330 mA and specifically permits the F00 suffix.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the rated voltage of EFC1248DF-F00?\u003c\/strong\u003e\u003cbr\u003eThe nominal rated voltage is 48 VDC, confirmed by Delta's CSA certification record and listings for the complete -F00 model.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the certified listed current?\u003c\/strong\u003e\u003cbr\u003eDelta's CSA schedule records 330 mA, equivalent to 0.33 A, for EFC1248DF. The same current appears on the photographed EFC1248DF-F00 label and in complete-model supplier specifications.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the electrical power?\u003c\/strong\u003e\u003cbr\u003eMultiplying 48 VDC by 0.33 A gives 15.84 W. This is a calculated reference based on listed electrical ratings and should not be confused with a separately tested maximum input-power value.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of EFC1248DF-F00?\u003c\/strong\u003e\u003cbr\u003eElecOK and several model-specific distributors list 120 x 120 x 32 mm. Other sellers describe the same family as 120 x 120 x 38 mm. A matching Delta dimension drawing was not established to resolve the difference, so verify actual depth and mounting features.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does the F00 suffix mean?\u003c\/strong\u003e\u003cbr\u003eDelta defines F00 as a frequency-generator output. It produces a rotation-related signal that can be interpreted by a compatible monitoring circuit.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eDoes F00 mean the fan has PWM speed control?\u003c\/strong\u003e\u003cbr\u003eNo. Delta's F00 designation establishes a frequency-generator function, not PWM control by itself. Although some sellers advertise PWM for four-wire EFC1248DF-F00 assemblies, the specific control input and electrical signal requirements need confirmation.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eHow many wires does EFC1248DF-F00 have?\u003c\/strong\u003e\u003cbr\u003eComplete-model supplier documentation and product images show four wires and a four-pin connector. Do not assume wire colors, pin order or connector keying without checking the exact assembly.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat rotational speed is specified?\u003c\/strong\u003e\u003cbr\u003eSome supplier descriptions report 4000 RPM. A corresponding Delta approval specification confirming this speed for the complete -F00 configuration was not established, so the figure remains supplier-reported.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat maximum airflow and static pressure are specified?\u003c\/strong\u003e\u003cbr\u003eSome sellers advertise approximately 200 CFM, but a matching manufacturer performance curve was not established. Maximum static pressure was also not independently verified. Request a variant-specific airflow-pressure specification if these values are needed for engineering selection.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the difference between EFC1248DF-F00 and EFC1248DF-R00?\u003c\/strong\u003e\u003cbr\u003eDelta's certification schedule lists both suffixes. F00 is a frequency-generator speed-feedback function, while R00 is a rotation-detector function. Their signal behavior and wiring must be matched to the equipment control circuit.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat should be checked before ordering Delta EFC1248DF-F00?\u003c\/strong\u003e\u003cbr\u003eVerify the complete EFC1248DF-F00 marking, 48 VDC power supply, 0.33 A listed current, actual 120 mm frame depth, mounting-hole geometry, four-pin connector, wire functions, frequency-generator input requirements and system airflow specifications.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/main\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"DELTA","offers":[{"title":"Default Title","offer_id":67809652605007,"sku":"LL1-DE- EFC1248DFF00","price":10.58,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/7569\/2623\/files\/EFC1248DF-F00-01.jpg?v=1792464282","url":"https:\/\/yunshuotrade.com\/products\/delta-electronics-efc1248df-f00-fan","provider":"yunshuotrade","version":"1.0","type":"link"}