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Shenzhen Topfan Technology Development Co., Ltd.

[Province: Guangdong ]

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Ball Bearing 2500RPM EC Axial Fan Equipment Cooling Fans AC 12V - 27.6V

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Ball Bearing 2500RPM EC Axial Fan Equipment Cooling Fans AC 12V - 27.6V

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Ec fan 80mm, low noise and long life expectancy, are widely used in the computer information technology, network communications, as well as industrial production equipment, medical equipment, home appliances, etc.

Application:

1: Equipment heat exhaust

2: Telecommunication FCU system and heater exchanger

3: Home Ventilation system

4: Replacing convetional AC fans fully.

Specification

ITEM                SPECIFICATION/CONDITION
BEARING TYPE          : BALL   Bearing
RATING VOLTAGE         : AC 24V
RATED VOLTAGE           :AC 12V-27.6V
START-UP VOLTAGE        :AC 12V (ON/OFF)
RATED CURRENT           :50mA±10
RATED SPEED                 :2500RPM±10%
AIR FLOW                  :32.37CFM
AIR PRESUURE)                :2.52mmH₂O
NOISE LEVEL                 :27.85dB(A)
PROFECFION TRPE
RESISTANCE PROFECTED     :YES
AUTO START                :YES
TACHOMETER OUTPUT       :NO
LOCK ROTOR ALARM OUTPUT:NO
PULSE WIDTH MODULATION :NO
THERMAL SPEED CONTROLLED:NO
CONNECTION LEAD TYPE:UL1007 24#AWG L=240mm(RED…POSITIVE, BLACK…NEGATIVE)
HOUSING :terminal
LABEL:24V-0.05A
connection :YES
5.Scope:
This documentation defines the thermal, mechanical & electrical characteristics of EC DC FAN AC(D)8025BM2.
6. Product Drawing:

Dimension

SCOPE

This documentation defines mechanical electrical characteristics of DC Brushless Fans.

MATERAL

2.1 Housing: PBT-HB-Glass P.B.T PBT-HB -Glass Filled polyester(P. B.T))

2.2 Fan Blade: PBT-HB-Glass P. B.T (PBT-HB -Glass Filled polyester(P. B.T))

2.3 Bearing Sys : [ √] Two Ball Bearing

[ ] one Ball one Sleeve

[ ] Sleeve Bearing

DIMENSIONS CONSTRUCCTION

All dimensions, direction of rotation and air flow were specified as per drawing attached.

CHARACTERISTICE DEFINITION
1. All rated characteristics were specified as per data sheet enclosed.
2. Rated Current: Rated Current shall be measured after 3 minutes of continuos rotation at rated voltage.
3. Rated Speed: Rated Speed shall be measured after 3 minutes of continuos rotation at rated voltage.
4. Start Voltage: The voltage which is able to start the fan to operate by suddenly switching “ON”.
5. Input Power: Input Power shall be measured after 3 minutes of continuos rotation at rated volage.
6. The fan can be locked, Locked Rotor Current: Locked Current shall be measured within one minute of rotor Locked after 3 minutes of continuous at rated voltage in clean air.
7. Air Flow Static Pressure: The air flow data and static pressures should be determined in accordance with AMCA standard or DIN24163 specification in a double chamber testing with intake side measurement.
8. Noise Level: The measurement of noise level is carried out with reference to DIN45635 in an anechoic chamber with the microphone positioned 1 meter from the air intake. Testing fan shall be hung in clean air.
MECHANICAL INSPECTION

Rotation Direction

The blade is count Clockwise viewing from the blade. The same direction also indicated by an arrow mark on one side of the housing.

Protection

All fans have integrated protection against locked rotor condition so that there will be no damage to winding or any electronic component. Restarting is automatic as soon as any constraint component to rotation has been released.

As fan placed at dead angle position, and the switch of FAN was changed from off to on,Restarting was automatic normal as soon as and proved that this fan is good fan

Locked Rotor Protection
1. No damage shall be found after 72 hours continuously at condition of rotation locked,Restarting is automatic as soon as constraint to running has been released.
2. The fan can’t be locked or the fan will overheat and be damaged
Polarity Protection

No damage shall be found with reverse connection 5 minute at rated voltage. After returning to normal polarity, all function shall be normal.

Free Drop shock

The product drops from the bight of 600mm to the wood board of 30mm. Any one of the 6 faces and any one of the corners could withstand the pressure, and also no damage will be found..ELECTRICAL INSPECTION

Insulation Resistance

Not less than 10M ohm between housing and positive end of lead wire(red) at 500V DC.
6.2 Dielectric Strength

No damage should at 500 VAC for 60 sec, measured with 5mA trip current between housing and positive end of lead wire.
6.3 Life Expectancy

The continuous duty life at given temperature after which,90% of testing units shall still be running.

Bearing System	Test Temperature	Test time
Ball Bearing	25	50000
Ball Bearing	40	48000
BallBearing	60	42000

7.0 ENVIRONMENTAL
7.1 Operating Temperature
-10 to +50 at normal humidity.
7.2 Storage Temperature

All function shall be normal after 500 hours storage at -40 to +50 at normal humidity with a 24 hour recovery period at room temperature.
7.3 Humidity

After 96 hours 95%RH 40/-2per MiL-STD-202F, method 103B humidity test, the measured data on insulation resistance and dielectric strength shall meet the specification.8.0 REMARKS

8.0 REMARKS

8.1 Matetial and construction are subject to change without advance. The changes should be within specification

8.2 All fans shall meet the quality inspection under sampling plan MIL-STD-105E as follow)
                      Critical         0
                         Major          0.65
           Minor0&nb

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