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B4020 40*40*20mm Low Noise Big Air Flow DC Blower Fan

1. Operating ambient temperature
Ball bearing: -30 to +75℃
Sleeve bearing: -10 to +70℃

2. Insulation resistance: 
10 meg ohms min, at 500V DC (between frame and terming)
Dielectric strength: 5mA max at 500V/AC/60Hz one minute (between frame and terminal)

Peculiarity:

low noise, max air flow

Construction:

Glass fiber reinforced plastic: Impeller and housing PBT are UL 94V0 rating

Function:

Frequency generator signal option

    Product ParameterParameter

    Model Bearing Type Rated
    Voltage
    Current Speed Air Flow Pressure Noise Weight
    VDC A RPM CFM mmH₂O dBA g
    BD1240207S/B Sleeve/Ball 12 0.10 6000 4.1 8.5 34.8 22
    BD1240205S/B 0.06 5300 3.5 6.8 29.6
    BD1240203S/B 0.05 4200 2.9 4.9 25.5
    BD0540207S/B Sleeve/Ball 5 0.20 6000 4.1 8.5 34.8
    BD0540205S/B 0.15 5300 3.5 6.8 29.6
    BD0540203S/B 0.10 4200 2.9 4.9 25.5

    402004tjg402005vda

    Product introductionintroduction

    1. Operating ambient temperature
    Ball bearing: -30 to +75℃
    Sleeve bearing: -10 to +70℃

    2. Insulation resistance: 
    10 meg ohms min, at 500V DC (between frame and terming)
    Dielectric strength: 5mA max at 500V/AC/60Hz one minute (between frame and terminal)

    3. Functions: Frequency generator signal option 

    4.Rated voltage: 12V .5V

    5.The motor possesses the advantages of a traditional DC motor while eliminating the carbon brush and slip ring structure. 

    6.It is capable of operating at low speed and high power, enabling direct driving of large loads without the need for a reducer.

    7. With its compact size and lightweight design, it delivers a substantial output. 

    8. The torque characteristics are excellent, particularly in medium to low speeds where performance is strong, boasting a large starting torque with minimal starting current. 

    9. It offers stepless speed regulation over a wide range, showcasing robust overload capacity. 

    10.Soft start and stop capabilities provide good braking characteristics, potentially eliminating the need for mechanical or electromagnetic braking devices. 

    11. High efficiency is achieved by minimizing excitation loss and carbon brush loss within the motor itself, as well as reducing multi-stage deceleration consumption; resulting in comprehensive power savings ranging from 20% to 60%. 

    12. The motor exhibits high reliability, stability, adaptability along with simple maintenance requirements. 

    13. It demonstrates resistance to bumps and vibrations while operating quietly with smooth operation for an extended lifespan.