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

max. 220 m 3 /hDC centrifugal fansSeries RET 97 TD 97 Ø x 41 mmHighlights:– 3-phase fan drive with high degree of running smoothness.– Very high pressure build-up.– Forward curved impeller.– Available as standard with PWM control input and speed signal.Additional inputs and outputs on request.General characteristics:– Impeller of galvanised steel plate.– Fully integrated electronic commutation.– Direction of rotation: CW seen on rotor.– Direction of air flow: axial air intake, centrifugal air exhaust out of the outlet.– Connection via single strands AWG 22, TR 64. Bared and tin-plated.– Mass: 430 g.Nominal dataAir flowAir flowNominal voltageVoltage rangeSound power levelSintec sleeve bearingsBall bearingsPower inputNominal speedTemperature rangeService life L 10 (40 °C)ebm-papst StandardService life L 10 (T max )ebm-papst StandardLife expectancy L 10 ∆(40 °C) see P. 15CurveSpecialsType m 3 /h CFM VDC VDC Bel(A) / Watts RPM °C Hours HoursNEWNEWRET 97-25/14/2TDP* 220 129 24 16...36 8,1 72 6 000 -20...+60 80 000 / 50 000 160 000 1RET 97-25/18/2TDP 220 129 48 36...60 8,1 72 6 000 -20...+60 80 000 / 50 000 160 000 1* PreliminarySpeed control range from 800 rpm at 7 % PWM up to nominal speed at > 90 % PWM. Standstill at 0 % PWM,maximum speed at sensor break.To attain the specified service life, an external capacitor must be wired between the plus and minus strands.Please note the wiring suggestion on page.R16Air flowThe air flow and noise level of fans without externalhousing depends on the installation conditions. The statedair flow and noise levels have been measured under thefollowing conditions:Centrifugal fan mounted on a base plate 116 x 116 mm.Cover plate 116 x 116 mm with an air inlet of Ø 80 mm,concentric to the impeller.Air flow310Pa2 mm+106+1800700600500[in H 2O]2,41ø 47,1ø58,3974001,63002000,824,4M4 (4x)10040,5+ 17,95+ 1025 50 75 100 125CFM50 100 150 200m³/h92N GTIPWMAHP