{"product_id":"cooltron-fd1751b12w5-76a-3sc1-172-x-150-x-51-mm-12-v-dc-axial-fan-dual-ball-bearing-pwm","title":"Cooltron FD1751B12W5-76A-3SC1 172 x 150 x 51 mm 12 V DC Axial Fan, Dual Ball Bearing, PWM","description":"\u003cp\u003e\u003cstrong\u003eGenuine Cooltron FD1751B12W5-76A-3SC1\u003c\/strong\u003e 12 V DC brushless axial fan in the 172 x 150 x 51 mm (\"1751\" \/ 17251) metal-frame industrial size. Die-cast aluminum frame, dual ball bearings rated for 70,000 hours, 238 CFM, and a 3-wire lead with PWM speed control. New, unused surplus stock from the original Cooltron factory cartons (bulk-packed, no individual retail box). Ships from Land O Lakes, Florida within 1 to 2 business days.\u003c\/p\u003e\n\u003cdiv style=\"border:3px solid #c00;background:#fff3f3;padding:12px 16px;margin:16px 0;\"\u003e\n\u003cp style=\"margin:0;\"\u003e\u003cstrong style=\"color:#c00;\"\u003e12 V DC ONLY.\u003c\/strong\u003e This fan needs a 12 volt DC supply (8–14 V DC). It will \u003cstrong\u003enot\u003c\/strong\u003e run on 120 V \/ 240 V AC wall power and is not a 24 V or 48 V fan. The leads end in a small 3-pin connector; unless your equipment has the mating plug, expect to splice.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3\u003eWiring\u003c\/h3\u003e\n\u003cp\u003eThe three leads are about 13 in (340 mm) long and end in a small white 3-pin connector. \u003cstrong\u003eRed = +12 V, black = ground, blue = PWM speed-control input (optional).\u003c\/strong\u003e Per the Cooltron datasheet the fan runs at full speed with only red and black connected and the blue lead left open; add a 1–30 kHz PWM signal on the blue wire for variable speed. The blue wire is a control input, not a tachometer output; this fan does not report RPM. Plan on a supply rated for at least 3 A per fan to cover start-up current.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e Cooltron FD1751B12W5-76A-3SC1 (12 V member of the FD1751 dual-ball family)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 172 x 150 x 51 mm (6.77 x 5.91 x 2.0 in), rounded metal frame, 17251 footprint\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e 4 corner through-holes, 4.4 mm, on a 161.9 x 133.3 mm pattern; fits M4 or #8 screws\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 12 V DC rated, 8–14 V DC operating range\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower \/ current:\u003c\/strong\u003e rated 1.36–1.8 A (16.32 W nominal) per the Cooltron datasheet; the fan's own rating label shows 27.72 W (about 2.3 A), which we treat as the maximum when sizing a power supply\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeed:\u003c\/strong\u003e 3,500 RPM at 12 V; PWM adjustable down to about 1,100 RPM at 20% duty\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAirflow:\u003c\/strong\u003e 238 CFM (405 m³\/h) maximum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStatic pressure:\u003c\/strong\u003e 17.7 mm H2O (0.70 in H2O)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNoise:\u003c\/strong\u003e 52.5 dB(A) at 1 m\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBearings:\u003c\/strong\u003e dual ball bearing, 70,000-hour L10 life at 40 °C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrame:\u003c\/strong\u003e die-cast aluminum, painted black; 5-blade PBT (UL 94V-2) impeller\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLeads:\u003c\/strong\u003e 3 x UL1007 22 AWG, 340 mm, sleeved, with 3-pin connector\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection:\u003c\/strong\u003e auto restart after a locked rotor; reverse-polarity protected\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating temperature:\u003c\/strong\u003e -10 to +70 °C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e about 1.6 lb (735 g)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApprovals:\u003c\/strong\u003e CE, cURus, RoHS. Made in China for Cooltron Industrial Supply.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFits in place of\u003c\/h3\u003e\n\u003cp\u003eOther 172 x 150 x 51 mm \/ 17251 12 V DC fans of the same frame size, such as the Sanyo Denki 109E57 series, NMB 5920PL, Delta EFB1712, Orion OD172SAP-12, Mechatronics MA1751 and Sunon equivalents. Check your existing fan's voltage, hole pattern and wiring before ordering; 24 V and 48 V fans in this size look identical and are not interchangeable. This is an industrial cabinet fan, not a PC case-fan size. These part numbers are listed for size cross-reference only; Caster Supply LLC is an independent reseller of new, unused surplus stock and is not affiliated with Cooltron Industrial Supply or any of the manufacturers named here.\u003c\/p\u003e\n\u003ch3\u003eTypical uses\u003c\/h3\u003e\n\u003cp\u003ePower inverters, UPS and battery chargers, telecom and server cabinets, welders and plasma cutters, RF and audio power amplifiers, laser and CNC enclosures, solar battery boxes and other 12 V equipment.\u003c\/p\u003e\n\u003ch3\u003eShipping and quantity pricing\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFree shipping anywhere in the United States, shipped within 1 to 2 business days from Land O Lakes, Florida. Multiple fans ship together in one box.\u003c\/li\u003e\n\u003cli\u003e96 units in stock. Need 10 or more? Full factory cartons of 16 are available; request quantity pricing through our \u003ca href=\"\/pages\/bulk-wholesale-quotes\"\u003eBulk \u0026amp; Wholesale Quotes\u003c\/a\u003e page.\u003c\/li\u003e\n\u003c\/ul\u003e\n","brand":"Cooltron","offers":[{"title":"Default Title","offer_id":46455663132729,"sku":"CT-FD1751B12W5-76A-3SC1","price":24.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/8633\/3497\/files\/1-cooltron-dc-fan.jpg?v=1788737836","url":"https:\/\/castersupplyco.com\/products\/cooltron-fd1751b12w5-76a-3sc1-172-x-150-x-51-mm-12-v-dc-axial-fan-dual-ball-bearing-pwm","provider":"Caster Supply","version":"1.0","type":"link"}