4118N/2HH-00187 DC Axial Fan Axial fan for DC operation with an additional alarm signal. Driven by an electronically co mmutated external rotor motor. Electronic co mmutation system is integrated into the motor hub. Features * Electronically protected against r everse polarity, overloading, and locking. General Data * Air intake over struts. Nominal voltage * Tacho output signal. * Improved humidity protection. Voltage range * Electrical connection via 3 leads AWG Nominal speed 22 TR 64, 31 0mm long: Red = +48VDC Blue = GND White = Tacho Output Signal V DC 48 V DC 44 - 52 -1 5000 Max. flow rate m /h 3 270 Max. flow rate CFM 160 Noise free air dB(A) 64 Current consumption mA 305 Power consumption W 14,7 Permanent ambient temperature C -20..... +50 h 70 000 min at max. voltage Service life (40 C) Fan housing / impeller Metal / PA 6.6 Bearing system Mass All technical data are mean values at nominal conditions. PAPST-MOTOREN GmbH & Co KG, Postfach 1435, D-78106 St. Georgen Ball bearings g 390 Preliminary data 4118N_2HH-00187.DOC 24.04.03 Sensor Output /2: U (+) Us ISource Us high Us ISink t1 t2 Ra Us low GND 1 Revolution U (+) Us Ubs GND Ra = Supply Voltage (+) = Tacho Output SignalSignal = Tacho Supply Voltage = Ground = External Pull-Up Resistor Output 2 pulses per revolution Ubs 4...60 V DC Us high 4...60 V DC at Isource = 0 mA Us low 0,4 V DC at Isink = 2 mA Isink max 20 mA t1 / t 2 PAPST-MOTOREN GmbH & Co KG, Ubs Ra = Ubs - Uslow Isin k 0,8 - 1,2 Postfach 1435, D-78106 St. Georgen 4118N_2HH-00187.DOC