OD1238 Series DC Fan - 12, 24, 48V 120x38mm (4.7"x 1.5") Frame & Impeller PBT, UL94V-O plastic Connection 2x Lead wires 22AWG Motor Bearing System Insulation Resistance Dielectric Strength Brushless DC, auto restart, impedance and polarity protected Dual ball bearing 10M ohm between leadwire and frame (500VDC) 1 second at 500 VAC, max leakage - 500 MicroAmp Aluminum frame is available. Use base part number "OD1238AP" to indicate metal frame. See website for full data sheet. * 48V units temp range (-20 ~ +60C) Temperature Range -20C ~ +75C * Life (L10) "HH" units are modified for super high air performance. Frame design is designated as m4. Standard units are m0 type. 65,000 hours (45C) Model Number Speed (RPM) Airflow (CFM) OD1238-12HHB OD1238-12HB OD1238-12MB OD1238-12LB OD1238-12LLB OD1238-24HHB OD1238-24HB OD1238-24MB OD1238-24LB OD1238-24LL * B OD1238-48HHB OD1238-48H * B OD1238-48M * B OD1238-48L * B OD1238-48LL * B 3800 2800 2540 1950 1500 3800 2800 2540 1950 1600 3800 3000 2550 2000 1600 154 105 95 73 53 154 105 95 73 45 154 100 79 65 45 Noise (dB) 52 43 41 33 27 52 43 41 33 23 52 42 33 26 23 Volts DC 12 12 12 12 12 24 24 24 24 24 48 48 48 48 48 Voltage Range (VDC) Amps 6 ~ 13.2 6 ~ 13.2 6 ~ 13.2 6 ~ 13.2 6 ~ 13.2 12 ~ 26.4 12 ~ 26.4 12 ~ 26.4 12 ~ 26.4 18 ~ 27 24 ~ 52 28 ~ 54 28 ~ 54 28 ~ 54 28 ~ 54 1.30 0.50 0.35 0.24 0.16 0.60 0.32 0.23 0.14 0.15 0.35 0.10 0.08 0.07 0.07 Max. Static Pressure ("H2O) 0.57 0.24 0.23 0.13 0.09 0.57 0.24 0.23 0.13 0.09 0.57 0.28 0.21 0.13 0.09 * Insert letter "T" to specify terminal type. - (Sleeve Bearing - Replace suffix "B" with "S" in part number.) Knight Electronics, Inc. 10557 Metric Drive Dallas, Texas 75243 214-340-0265 Orion Fans RoHS Compliant 50 Information and data is subject to change without prior notification.