{"product_id":"nidec-w40s12bma5-57-fan","title":"Nidec W40S12BMA5-57 DC Axial Cooling Fan 12V 40x40x28mm 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-line:#c9dce9;--surface:#fff;--surface-soft:#f7fbfe;--text-main:#173042;--shadow-soft:0 10px 30px rgba(8,47,73,.08);--shadow-hover:0 16px 36px rgba(8,79,124,.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,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(15,110,168,.025) 1px,transparent 1px);background-size:auto,34px 34px,34px 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*::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\u003eNidec UltraFlo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eW40S12BMA5-57\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Category\u003c\/td\u003e\n\u003ctd\u003eDC Axial Cooling Fan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFan Series\u003c\/td\u003e\n\u003ctd\u003eW40S Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Voltage\u003c\/td\u003e\n\u003ctd\u003e12 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage Range\u003c\/td\u003e\n\u003ctd\u003eVerify the exact -57 variant against the fan label or manufacturer documentation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Current\u003c\/td\u003e\n\u003ctd\u003eSupplier listings differ between 0.12 A and 0.14 A; confirm the exact unit rating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrame Dimensions\u003c\/td\u003e\n\u003ctd\u003e40 x 40 x 28 mm\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\u003e12 VDC Operation\u003c\/h3\u003e\n\u003cp\u003eDesigned for compatible equipment using a nominal 12 VDC power supply. Check the actual voltage rating before installation.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eCompact 40 mm Frame\u003c\/h3\u003e\n\u003cp\u003eThe 40 x 40 x 28 mm form factor is suitable for equipment designed around this specific fan size and thickness.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eFour-Wire Connection\u003c\/h3\u003e\n\u003cp\u003eSupplier listings identify a four-wire connector. Verify the connector shape, wire assignment and control signals against the installed fan.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eAxial Airflow Design\u003c\/h3\u003e\n\u003cp\u003eThe axial fan configuration moves air through equipment ventilation paths to support cooling of compatible electronic components.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eW40S Series Construction\u003c\/h3\u003e\n\u003cp\u003eThe Nidec UltraFlo W40S series includes compact cooling fans for applications requiring a small footprint and directed airflow.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eModel-Specific Replacement\u003c\/h3\u003e\n\u003cp\u003eUsing the complete W40S12BMA5-57 model number helps distinguish this fan from similar W40S variants with different electrical and control characteristics.\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\u003eServer chassis cooling\u003c\/li\u003e\n\u003cli\u003eNetwork appliance ventilation\u003c\/li\u003e\n\u003cli\u003eCompact computer equipment cooling\u003c\/li\u003e\n\u003cli\u003eIndustrial electronic enclosure airflow\u003c\/li\u003e\n\u003cli\u003eEmbedded system thermal management\u003c\/li\u003e\n\u003cli\u003eSmall-form-factor equipment cooling\u003c\/li\u003e\n\u003cli\u003eElectronic component ventilation\u003c\/li\u003e\n\u003cli\u003eReplacement fan maintenance and repair\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 purchase inquiries for the Nidec UltraFlo W40S12BMA5-57 DC Axial Cooling Fan. For bulk orders or related cooling components, contact our team with your required quantity and equipment application. Before ordering, verify the full model number, 12 VDC rating, 40 x 40 x 28 mm dimensions, connector configuration and current rating. Because supplier listings report different current values for this model, use the actual fan label or applicable manufacturer documentation to confirm electrical compatibility.\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 Nidec W40S12BMA5-57?\u003c\/strong\u003e\u003cbr\u003eIt is a Nidec UltraFlo W40S series DC axial cooling fan identified by the complete model number W40S12BMA5-57.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat voltage does W40S12BMA5-57 use?\u003c\/strong\u003e\u003cbr\u003eSupplier listings identify a nominal rated voltage of 12 VDC. Confirm the rating on the actual fan before connecting it.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of this fan?\u003c\/strong\u003e\u003cbr\u003eProduct listings identify a 40 x 40 x 28 mm frame.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the rated current?\u003c\/strong\u003e\u003cbr\u003eAvailable supplier listings are inconsistent, reporting 0.12 A or 0.14 A. Verify the exact model label or manufacturer specification rather than relying on an assumed value.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eHow many wires does the fan use?\u003c\/strong\u003e\u003cbr\u003eSupplier listings identify a four-wire connection. Confirm the connector and pinout before installation.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat type of fan is this?\u003c\/strong\u003e\u003cbr\u003eThe W40S12BMA5-57 is listed as a DC vane axial cooling fan.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat bearing type is used?\u003c\/strong\u003e\u003cbr\u003eNidec's W40S series documentation describes permanently lubricated dual ball bearings for the series. Confirm the specification applicable to the exact -57 variant if bearing details are critical.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eCan this fan be used in a server or network appliance?\u003c\/strong\u003e\u003cbr\u003eIt can be considered for compatible compact equipment. Check the mounting arrangement, voltage, current, airflow direction and connector signals against the target system.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eCan it replace another 40 mm fan?\u003c\/strong\u003e\u003cbr\u003eNot automatically. Verify the 28 mm thickness, voltage, current, mounting holes, connector, airflow and any speed-control or monitoring requirements.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat should be checked before ordering?\u003c\/strong\u003e\u003cbr\u003eConfirm model W40S12BMA5-57, 12 VDC operation, 40 x 40 x 28 mm dimensions, four-wire connector, actual current rating and compatibility with the equipment's fan control interface.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/main\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"NIDEC","offers":[{"title":"Default Title","offer_id":67834955923535,"sku":"LL1-NI-W40S12BMA557","price":13.86,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/7569\/2623\/files\/W40S12BMA5-57-01-_01.jpg?v=1792653823","url":"https:\/\/yunshuotrade.com\/products\/nidec-w40s12bma5-57-fan","provider":"yunshuotrade","version":"1.0","type":"link"}