Compact fans for AC and DC [PDF] - ebm-papst
Compact fans for AC and DC [PDF] - ebm-papst
Compact fans for AC and DC [PDF] - ebm-papst
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<strong>DC</strong> <strong>fans</strong>Technical in<strong>for</strong>mationProduct lineOur centrifugal product line includes <strong>fans</strong> <strong>for</strong>every application. Whether as free-runningimpellers with a diameter between 97 mm <strong>and</strong>225 mm or as assemblies in a ready-to-install,compact housing with inlet nozzle with an edgelength between 51 mm <strong>and</strong> 270 mm. Of course,all models feature high-efficiency, brushlessmotor technology.Electronic protection againstreverse polarity<strong>ebm</strong>-<strong>papst</strong> <strong>DC</strong> <strong>fans</strong> have electronically commutateddrives with electronic protection againstreverse polarity.The electronics are convenientlylocated in the fan hub.Product life expectancyA distinctive feature of <strong>DC</strong> fan technology isthe convincingly high product life expectancy.Thanks to the excellent efficiency of the brushlessdrives, the thermal load of the bearings isreduced, thus considerably increasing the lifeexpectancy of the <strong>fans</strong>.Protection class<strong>DC</strong> <strong>fans</strong> with sleeve <strong>and</strong> ball bearings are poweredby Class E insulated motors. All <strong>ebm</strong>-<strong>papst</strong><strong>fans</strong> con<strong>for</strong>m to the requirements of ProtectionClass IP 20. Fans con<strong>for</strong>ming to IP 54 <strong>and</strong> specialprotection classes are also available.Voltage rangeMany of our <strong>DC</strong> <strong>fans</strong> can be operated on voltagesthat are up to 50% lower <strong>and</strong> 25% higherthan their nominal voltage (see Voltage range inthe technical tables). This enables the air per<strong>for</strong>manceto be adapted to the cooling requirements<strong>and</strong> allows the noise to be reduced, evenif the fan does not have a control input.Closed-loop speed control <strong>and</strong> monitoringClosed-loop speed control <strong>and</strong> function monitoringare becoming increasingly important inmany applications. <strong>ebm</strong>-<strong>papst</strong> offers many <strong>fans</strong>in the st<strong>and</strong>ard design with a control input <strong>and</strong>open collector speed signal.S-Force centrifugal – RadiCalThe new S-Force centrifugal <strong>fans</strong> provide peakper<strong>for</strong>mance among <strong>fans</strong> of this type. With airflow capacity at over 1500 m³/h <strong>and</strong> a pressurebuild-up of up to 1000 pascals, the highest heatflows are manageable. In addition, the modelsare extremely efficient due to the multi-pole,electronically commutated drive motors <strong>and</strong> canbe adapted individually to every applicationthanks to intelligent motor features. Somemodels use our new, highly efficient RadiCalimpellers.76