C possible special versions: (see chapter dc fans - specials) - speed signal - go / no-go alarm - alarm with limit speed - external temperature sensor - internal temperature sensor - pwm control input - analogue control input - protection against moisture dc centrifugal fans series rer 120 td ? 120 x 54 mm max. 390 m 3 /h C material: impeller: grp 1) C direction of air flow: axial: intake centrifugal: exhaust C direction of rotation: clockwise, seen on rotor C connection: via single wires awg 18, 20 or awg 22, tr 64, speed signal and control in put awg 22 C highlights: 3-phase fan drive with very smooth ru nning and high efficiency backwards-curved impeller C mass: 430 g 1) fibreglass-reinforced plastic 50 100 150 200 0 100 200 300 100 200 300 400 500 600 1, 6 0,8 1 32 m3/h pa c fm [in h 2 o] type m 3 /h cfm vdc vdc bel(a) / watts rpm c hours hours rer 120-26/14/2 tdmp* 320 188 24 16...32 tbd 51 5 200 -20...+60 60 000 / 37 500 102 500 ? rer 120-26/14/2 tdp 377 222 24 16...32 8,2 78 6 100 -20...+60 55 000 / 35 000 92 500 ? rer 120-26/18/2 tdmp* 320 188 48 36...60 tbd 51 5 200 -20...+60 57 500 / 35 000 97 500 ? rer 120-26/18/2 tdp 390 230 48 36...60 8,3 92 6 300 -20...+60 50 000 / 30 000 85 000 ? * provisional subject to alternations nominal data max. 8 deep the air flow and noise level of the centrifugal fans without external housing depend on their individual installation conditions. the stated air flow and noise level were record ed under the following measurement parameters: centrifugal fan mounted on a foundation plate 140 x 140 mm. cover plate 140 x 140 mm, with an air inlet opening ? 94,4 mm, arranged concentrically to the fan impeller. speed control range from 800 rpm at 7 % pwm up to nominal speed at > 90 % pwm. standstill at 0 % pwm, standstill if control cable is interrupted. the specific service life is valid when an external capacitor is wired between the plus and minus wires. please note the wiring suggestion. tin-plated 109 inlet nozzles from p. 248 information dc axial fans dc fans - specials acmaxx / greentech ec-compact fans ac axial fans accessories representatives dc centrifugal fans ac centrifugal fans nominal voltage air flow air flow voltage range sound power level sintec sleeve bearings ball bearings input power nominal speed temperature range service life l 10 (40 c) ebm-papst standard service life l 10 (t max ) ebm-papst standard life expectancy l 10ipc (40 c) see page 17 curve
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