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Options in various speeds, voltages, and termination systems
Motor: Low noise and low input power design
Frame: Durable die-cast aluminum for AC fans or non-flammable thermoplastic PBT UL 94V-0 for DC fans
Bearing: Long life ball bearing or precision sleeve bearing Intelligent
Control: IC Protection, Alarm Output, Tach Output, and Variable Speed
Reading model number Instruction
Voltage Type Frame Size Thickness Air Flow Level
Voltage Bearing Type Intelligent Control  
Voltage Type
Frame Size
Air Flow Level
Bearing Type
Intelligent Control
*AC Fans Options

A: AC Fan
B: Blower
C: Cooler
D: DC Fan

20: 20 mm/0.8 inch 25: 25 mm/1.0 inch 30: 30 mm/1.2 inch 35: 35 mm/1.4 inch 40: 40 mm/1.6 inch 45: 45 mm/1.8 inch 50: 50 mm/2.0 inch 60: 60 mm/2.4 inch 70: 70 mm/2.8 inch 80: 80 mm/3.1 inch 92: 92 mm/3.6 inch 12: 120 mm/4.7 inch 127: 127 mm/5.0 inch 172: 172 mm/6.7 inch 17: 172 mm/6.7 inch 22: 220 mm/ 8.7 inch 254: 254mm/ 10 inch 06: 6 mm/0.2 inch 07: 7 mm/0.3 inch 08: 8 mm/0.3 inch 09: 9 mm/0.4 inch 10: 10 mm/0.4 inch 15: 15 mm/0.6 inch 20: 20 mm/0.8 inch 25: 25 mm/1.0 inch 28: 28 mm/1.1 inch 30: 30 mm/1.2 inch 32: 32 mm/1.3 inch 33: 33 mm/1.3 inch 38: 38 mm/1.5 inch 51: 51 mm/2.0 inch 60: 60 mm/2.4 inch 68: 68 mm/2.7 inch 89: 89 mm/3.5 inch

S: Very Low
L: Low
M: Medium
H: High
X: Extra High
E: Extreme High
U: Ultra High
P: Extreme Ultra High
Y: Utmost

05: 5V
12: 12V
24: 24V
48: 48V

B: Ball
S: Sleeve
X: Hypro
A2-C: Cera

I1: IC Protection
I2: Alarm Output High(RD)
I22: Alarm Output Low(RD)
I3: Tach Output(FG)
I4: Variable Speed(VS)

I5: PWM Function
I7: Two Speed
I23: RD+FG
I24: RD+VS
I34: FG+VS

T: Terminal Type
L: Lead Wire Type
M: All Metal
P: All Plastic
C: Capacitor Induction
R: Reverse Air Flow

This documentation defines the mechanical and electrical characteristics of DC brushless fans.

Input Power, Current and Speed: Rated current, rated speed, and rated input power shall be measured after 30 minutes continuous rotation at rated voltage in clean air at ambient temperature of 250C.
  Start Voltage: The voltage which is able to start the fan to operate by suddenly switching on.
  Locked Rotor Current: Locked rotor current shall be measured within one minute of rotor locked, after 30 minutes of continuous rotation at rated voltage in clean air.
  Air Flow and Static Pressure: The air flow data and static pressures should be determined in accordance with AMCA standard in a double chamber testing with intake-side measurement.

Dielectric Strength: 1500VAC 60Hz for one minute 5 mA between housing and both lead wires.
  Insulation Resistance: At least 10 M W between internal housing and both lead wires by 500VDC.
  Insulation: Class A.
  Tensible Strength of Lead Wire: Not broken pulled at 1 kg for 15 seconds.
  Polarity Protection: Withstand reversed voltage test for 15 minutes. It became running normally right after the voltage is corrected.
  Locked Rotor Protection: Protects motor from damage of locked rotor condition at the rated voltage at least seventy-two hours.
  Rotation Direction: Clockwise view from label side.
  Material for Frame: Glass filled thermoplastic PBT of UL 94V-0.
  Material for Impeller and Bobbin: Glass filled thermoplastic PBT of UL 94V-0.
  Material for Lead Wire: UL 1007 AWG24.

Acoustical Noise Level: Measured in an anechoic chamber with background noise level 14.9 dBA maximum with a microphone at a distance of one meter from the fan. The testing fan shall be running free blowing without resistance to airflow.
  Test Environment: The tests are conducted under the temperature of 190C and humidity of 67% RH.
  Drop Test: In minimum package condition, the fan withstand drops on any three faces from a height of 30cm onto a wood board of 10mm thick.
  Vibration Test: In rest status, scan at the frequency 5 ~ 55 Hz, 1 OCT/Min. with the vibration range of 0.75mm (P~P). Take 16 rotating vibration scan for each of X, Y, Z axis. The surface inspection and operation should remain normal after test.
  MTBF Test: Mean Time Between Failure test method and calculation formula is simplified and in accordance with MIL-HDBK-217D and POISSON table. (Detailed test method available upon request.)