customized design! 8412ENHV / 17-175 DC axial fan – Low noise level by special commutation electronics – Electronic locked rotor and reverse polarity protection – Self-diagnosis function: In case of failure (stiffness/blocking) a signal for speed control will be pulled down to ground. Loss of electrical contact will cause shutdown of motor – External speed setting via PWM – Speed control and diagnosis combined in one wire – Closed loop speed control (restricted, working independently of nominal operating voltage and charge) – EMC protective measures suitable for direct connection to vehicle supply system – Flanges for application in sucking or blowing operation – Housing made of 2 parts to facilitate assembly and to avoid mechanical stresses to the bearing system ebm-papst • St. Georgen Nominal data Type 8412ENHV / 17-175 Supply voltage range V DC 9 … 15 Nominal supply voltage V DC 12 Nominal current consumption max. mA 140 Nominal speed max. min-1 3850 Speed setting (PWM, open collector, f=3…4 kHz) % 35 … 90 Max. flow rate (p = 0) CFM 27.90 Max. pressure (V = 0) Pa 48 Sound pressure level (∆pf) dB(A) 45 Ambient temperature range °C -40 … +70 Service life (at 23°) h > 5000 Bearing system Mass Ball bearing g 75 All data are average figures at nominal voltage. Subject to technical change. ebm-papst St. Georgen GmbH & Co. KG Hermann-Papst-Straße 1 • D-78112 St. Georgen • Phone +49 (0) 77 24 / 81-0 • Fax +49 (0) 77 24 / 81-1309 • [email protected] • www.ebmpapst.com/de