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