DV4114/2N-900

DV4114/2N-900- DC Mixed Flow Fan 119 mm mixed flow fan with very high air performance. The DC drive employs an electronically commutated external rotor motor with high efficiency. Drive electronics is completely integrated into the fan hub. General Data Features Nominal voltage V DC 24 • Voltage range V DC 16 ...26,4 Nominal speed -1 min 6100 Max. flow rate m 3/h 275 Metal fan housing, impeller made of fibreglass reinforced plastic PA. Max. flow rate CFM 161,9 Noise free air dB(A) 60 Open collector tacho output with 2 pulses per revolution. Noise in optimum operating range bels 6,7 Power consumption W 22 Permanent ambient temperature °C -20 ... +65 Service life at +40°C h 70.000 Service life at +65°C h 40.000 • • • • Electronic protection against reverse polarity, blocking and overloading of the fan. Air exhaust over struts. Electrical connection via 2 leads, AWG 22, 310mm long. Red: +12VDC Blue: GND White: /2 Tacho output Patents granted or applied for. at max. voltage Approvals applied for Fan housing / impeller Metal / PA 6.6 Bearing system Mass All data are average values at nominal conditions. ebm-papst St. Georgen GmbH & Co KG, Postfach 1435, D-78106 St. Georgen Ball bearings g 450 Subject to change without further notice. DV4114_2N-900.doc 04.05.04 Tacho Output Signal „/2“: U (+) ISource Us ISink Ra Ubs GND Ra = Ubs - Uslow Isin k Us Us high t1 t2 Us low 1 Revolution Output 2 pulses per revolution Ubs 4...30 V DC Us high 4...30 V DC at Isource = 0 mA Us low