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    12V/24V DC Cooling Fan, 40mm x 40mm x 20mm

    $19.86
    DC brushless fan 12v and small 24V dc cooling fan for selection, 40mm x 40mm x 20mm dimension, rated speed 5000rpm/6000rpm/7000rpm, quiet operation 24dB, high level of fire and waterproof, safe to use. Diverse interface options, bearing type oil or ball.
    SKU: ATO-CF-DC4020
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    This product has a minimum quantity of 3
    Free Shipping Worldwide
    Delivery date: 6-20 days

    High velocity 12 volt fan, 24 volt dc cooling fan is availabe, rated current 0.06A/0.03A/0.07A/0.09A, input power 0.72W/1.44W/0.84W/1.68W, working life of up to 35000 hours.

    12V/24V DC Cooling Fan Specifications:

    Model ATO-DC4020SLL ATO-DC4020BLL ATO-DC4020SLM ATO-DC4020BLM ATO-DC4020SLH ATO-DC4020BLH
    Rated Voltage 12V 24V 12V 24V 12V 24V 12V 24V 12V 24V 12V 24V
    Bearing Type Oily Ball Oily Ball Oily Ball
    Rated Current 0.06A 0.03A 0.06A 0.03A 0.07A 0.03A 0.07A 0.03A 0.09A 0.04A 0.09A 0.04A
    Input Power 0.72W 1.44W 0.72W 1.44W 0.84W 1.68W 0.84W 1.68W 1.08W 1.92W 1.08W 1.92W
    Fan Speed 5000±10%RPM 6000±10%RPM 7000±10%RPM
    Air Flow 5CFM 6.2CFM 7.4CFM
    Static Pressure 2.7mm-H2O 4.0mm-H2O 5.6mm-H3O
    Noise 24dB-A 27dB-A 30dB-A
    Dimension 40mm x 40mm x 20mm
    Material Plastic
    Certificate CE, UL
    Fire Rating UL94V-0
    Operating Temperature -10 ℃ ~ 70 ℃
    Operating Humidity 35% ~ 85RH
    Storage Temperature -40 ℃ ~ 70 ℃
    Storage Humidity 35% ~ 85RH

    Dimensions and Curves (unit: mm)
    Samll dc cooling fan dimensions
    DC Cooling Fan Interface
    DC cooling fan interface one
    DC cooling fan interface two
    DC cooling fan interface three

    Tips: Factors affecting the noise of DC cooling fans
    1. Speed. The faster the DC fan rotates, the bigger the fan, the louder the noise.
    2. Bearings. The bearings of DC fans are briefly divided into two types, one is oil and the other is ball. Under normal circumstances, ball bearing fans are more noisy than bearing bearing fans.
    3. Airflow. During the rolling of fan blades, they will encounter resistance in the air. The faster the rolling speed, the larger the blade area and the greater the resistance, so the noise will be greater.
    4. Conflicting force. If the fan is used for a long time, the fan will be excessively racked, vibrated, and the center of gravity is unstable. This will cause a collision or conflict between the fan blade and the fan frame, and then generate noise.

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