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Five-Bladed Large EC Fans
December 2007
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The new EC fans from ebm-papst now operate even more quietly and efficiently. ebm-papst Inc., the leading manufacturer of motors and fans, now offers a complete range of EC motors up to 3 kW for use in a wide variety of applications, such as building air-conditioning, telecommunications, ventilation, and refrigeration technology. EC motors are highly efficient and operate extremely quietly and economically in terms of energy consumption. Integrated electronics make the fans easy to operate. These controls make it possible to increase or reduce the fan speed while only using as much energy as absolutely necessary.

Aerodynamic behavior also plays a significant role in the efficiency of these fans. For large EC fans, ebm-papst has developed a new blade design that allows the fans to operate more quietly and consume less energy.  The new EC fans have five blades instead of seven. In addition, the blade ends have been optimized with winglets (wider blade ends). These improvements, depending on the operating point, make it possible to greatly reduce the noise emissions. The new fans range in size from a blade diameter of 25–40 in. (630–910 mm).

For more information, contact ebm-papst Inc.; 100 Hyde Rd., Farmington, CT 06034, U.S.; Tel: +1-860-674-1515; e-mail: sales@us.ebmpapst.com; Web site: www.ebmpapst.us. ebm-papst Inc.

ebm-papst Inc.

 



 
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