Compact fans for AC and DC [PDF] - ebm-papst

AC fansTechnical informationProduct lineThe renowned ebm-papst AC fans are usedwhen DC voltage is not available. The AC rangeof fans is based on experience gained fromdecades of development activity, millions ofunits in series production and competence ininnovation of a world-wide technological leader.A wide range of fans for AC operation is presentedin this catalogue. In addition to completedevice fans, you will also find fans withoutexternal housing, providing a particularly economicaladvantage when the air duct can beintegrated in the respective device.Variety of sizesAC fans are available in a variety of sizes witheither air exhaust or air intake over struts.Silent running models with sleeve bearings orfor extreme ambient conditions; fans with ballbearings are available with plug connection orexternal leads.Shaded-pole or capacitor motorsFan drives by shaded-pole or capacitor motors,most of which incorporate the world-famousebm-papst external rotor principle: The fanblades are directly attached to the external rotorof the external rotor motor, thus combining bothhigh performance and profitability.Flat built AC fansebm-papst also has particularly flat built ACfans with internal rotor motor. Their advantage:quick start to full speed. A plastic impeller andthe both smaller and lighter internal rotor motorlead to a lower moment of inertia.BearingsAC fans with sleeve bearings are powered byClass E insulated motors. Fans with ballbearings are equipped with Class B, E or Finsulated motors.Protection classAll ebm-papst fans conform to the requirementsof IP 20. Fans conforming to IP 54 and specialtypes of protection class are also available.AC voltageThe line of AC fans for Euro voltage accordingto IEC 60038 (230 V + 6 %, -10 %) is basicallyalso available for 115 V.FrequenciesAC fans can be operated at frequencies of 50Hz or 60 Hz. However, their technical data thenchanges accordingly.CapacitorFans driven by capacitor external motorsprovide particularly high operating efficiency.Generally, the required operating capacitor isalready integrated in the fan housing.OverloadingAlmost all AC fans are protected against overloading(e.g. due to locked rotor) the drivemotors are either impedance protected (marked“Impedance protected”, and/or “Z.P.”) or areequipped with a thermal switch (marked“Thermally protected” or “Th.P.”). The modeldesignation of these fans ends with “S”.142