4112 N/2H3 DC Axial Fan 08. Feb 2006 High performance DC Axial fan with electronically commutated external rotor motor. The Electronic commutation is completely integrated into the motor hub. Features General Data Electronically protected against Nominal voltage V DC 12 reverse polarity, overloading, and locking. Voltage range V DC 9 - 15 Air intake over struts. -1 Nominal speed min 6000 Metal fan housing. 3 Max. flow rate m /h 310 Impeller of fibre-glass reinforced plastic PA Max. flow rate CFM 182,4 Open collector Tacho Signal Max. pressure Pa 300 Electrical connection via 3 leads Noise free air dB(A) 65 AWG 22 TR 64, 310mm long Red = +12 VDC Current consumption mA 1800 Blue = GND Power consumption W 21,6 White = Tacho Start-up current mA tbd Permanent ambient temperature C -20 ... +65 at max. voltage Service life L (40 C) h 65.000 10 Service life L (65 C) h 37.500 10 Fan housing / impeller Metal / PA 6.6 Bearing system Ball bearings Approvals CSA UL VDE applied for Mass g 390 All technical data are mean values at nominal conditions. Preliminary data subject to change 400 350 300 f p 250 D 200 15 VDC 150 12 VDC 100 50 9 VDC 0 0 50 100 150 200 250 300 350 Volumenstrom m/h ebm-papst St. Georgen GmbH & Co KG, Postfach 1435, D-78106 St. Georgen 4112N2H3.DOC 08.02.06 Page 1 of 2 Druckerhhung Pa Tacho Signal /2 Output signal: U s U s high t 1 t 2 U s low 1 Umdrehung Connection Scheme: U (+) I Source U s I Sink U bs R a GND U (+) = supply voltage (+) U = tacho signal s U - U bs slow U = supply voltage tacho signal R = bs a I sink GND = ground (-) Ra = external pull up resistor Technical data: Signal 2 pulse per revolution U 5...30 V DC bs U 5...30 V DC I = 0 mA s high source U = 0,4 V DC I = 2 mA s low sink I = 4 mA sink max t / t 0,8 - 1,2 1 2 ebm-papst St. Georgen GmbH & Co KG, Postfach 1435, D-78106 St. Georgen 4112N2H3.DOC 08.02.06 Page 2 of 2