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WBLF-901-BS1200
Sunlight
| Voltage: | |
|---|---|
| Quantity: | |
| Max Fan Speed | 4300rpm |
| Min Fan Speed | 1300rpm |
| Weight | 1.5KG |
| Operating supply voltage rang | 16V -32V |
| Operating working temperature range | -40°C - 85°C |
| Storage temperature range |  -40°C - 120°C |
| Life time | up to 40000 hours depending on duty profile |
| Time from 0 rpm to max speed | 8 seconds |
| IP grade | IP68 |
Airflow of DC Brushless Axial Fan WBLF-901-BS1200
High-performance in 24V systems — ideal for heavy vehicles
Flexible speed regulation via PWM control
Robust sealing and durability for outdoor & demanding environments
Quiet and efficient operation thanks to brushless design
Full internal development control — motor, blade, driver all in-house
Rigorous testing & compliance: vibration, insulation, EMC, life test
Customizable options: blades, wiring, connectors, mounting, etc.
This fan is used in:
Truck & bus cooling systems (radiators, condensers)
Refrigerated transport / reefer units
Heavy-duty mobile equipment (construction, agriculture, mining)
Special vehicles (fire trucks, ambulances)
Retrofitting or replacement for systems requiring 24V high-performance axial fans
Mount on a rigid, flat surface to prevent frame warping
Respect airflow direction — ensure the fan pushes or pulls as intended
Correct polarity wiring: black = positive, brown = negative (clockwise rotation)
Stable power supply: keep system voltage within 16–32V
Avoid chemical immersion — IP68 protects against water & dust, but not strong acids / alkalis
Clear inlet/outlet paths to prevent obstruction or recirculation
Periodic inspection: check wiring insulation, connectors, and mounting bolts
Storage: dry, ambient between –40 °C and +120 °C
Control via PWM or external signal: supports modulated speed control
Since 1990, Sunlight has specialized in manufacturing high-performance brushless fans and blowers. Certified with ISO9001 and IATF16949, our products meet CE, RoHS, and EMC standards. Widely applied in automotive, machinery, refrigeration and energy industries. Sunlight is committed to delivering quality, innovation, and reliable cooling solutions.
All fans undergo 100% testing before shipment, with customization and technical support available.
IATF I16949:2016 Certificate
IATF 16949:2016 Certificate
EMC Certificate 
CE certificate
Q1: What is the current draw at full speed (24V)?
A1: The current is approximately 10–15 A at full load, depending on airflow resistance and system backpressure. Use the performance curve to correlate airflow and current.
Q2: What protections are built into the fan driver?
A2:
Reverse polarity protection
Over-current protection with integrated 30A fuse
Thermal/overheat protection (shuts down or derates when internal temp is excessive)
Controlled soft start (reduces inrush current during startup)
Q3: How is the EMC performance certified?
A3: The fan has been tested under CISPR 25 / ISO 7637 standards and passes conducted and radiated emissions limits. It is suitable for integration in heavy vehicle systems where EMC compliance is essential.
Q4: How is noise measured?
A4: Noise testing follows ISO 3744 / ISO 5136 in semi-anechoic chambers. The fan's noise level is typically ≤ 68 dB(A) under standard installation and full speed (value depends on environment and mounting).
Q5: What is the predicted lifetime and failure modes?
A5: Lifetime tested under accelerated conditions using L10 methodology. Typical life ≥ 25,000 hours at nominal conditions. Possible failure modes include bearing wear or driver protection triggering (over-temperature, over-current).
Q6: How should wiring be handled to minimize voltage drop and interference?
A6:
Use short, thick wiring (12 AWG recommended)
Keep wiring routes away from high-noise circuits
Use proper crimping and shielding if needed in EMC-sensitive installations
Verify voltage at the fan terminals under load to avoid undervoltage
| Max Fan Speed | 4300rpm |
| Min Fan Speed | 1300rpm |
| Weight | 1.5KG |
| Operating supply voltage rang | 16V -32V |
| Operating working temperature range | -40°C - 85°C |
| Storage temperature range | -40°C - 120°C |
| Life time | up to 40000 hours depending on duty profile |
| Time from 0 rpm to max speed | 8 seconds |
| IP grade | IP68 |
Airflow of DC Brushless Axial Fan WBLF-901-BS1200
High-performance in 24V systems — ideal for heavy vehicles
Flexible speed regulation via PWM control
Robust sealing and durability for outdoor & demanding environments
Quiet and efficient operation thanks to brushless design
Full internal development control — motor, blade, driver all in-house
Rigorous testing & compliance: vibration, insulation, EMC, life test
Customizable options: blades, wiring, connectors, mounting, etc.
This fan is used in:
Truck & bus cooling systems (radiators, condensers)
Refrigerated transport / reefer units
Heavy-duty mobile equipment (construction, agriculture, mining)
Special vehicles (fire trucks, ambulances)
Retrofitting or replacement for systems requiring 24V high-performance axial fans
Mount on a rigid, flat surface to prevent frame warping
Respect airflow direction — ensure the fan pushes or pulls as intended
Correct polarity wiring: black = positive, brown = negative (clockwise rotation)
Stable power supply: keep system voltage within 16–32V
Avoid chemical immersion — IP68 protects against water & dust, but not strong acids / alkalis
Clear inlet/outlet paths to prevent obstruction or recirculation
Periodic inspection: check wiring insulation, connectors, and mounting bolts
Storage: dry, ambient between –40 °C and +120 °C
Control via PWM or external signal: supports modulated speed control
Since 1990, Sunlight has specialized in manufacturing high-performance brushless fans and blowers. Certified with ISO9001 and IATF16949, our products meet CE, RoHS, and EMC standards. Widely applied in automotive, machinery, refrigeration and energy industries. Sunlight is committed to delivering quality, innovation, and reliable cooling solutions.
All fans undergo 100% testing before shipment, with customization and technical support available.
IATF I16949:2016 Certificate
IATF 16949:2016 Certificate
EMC Certificate CE certificate
Q1: What is the current draw at full speed (24V)?
A1: The current is approximately 10–15 A at full load, depending on airflow resistance and system backpressure. Use the performance curve to correlate airflow and current.
Q2: What protections are built into the fan driver?
A2:
Reverse polarity protection
Over-current protection with integrated 30A fuse
Thermal/overheat protection (shuts down or derates when internal temp is excessive)
Controlled soft start (reduces inrush current during startup)
Q3: How is the EMC performance certified?
A3: The fan has been tested under CISPR 25 / ISO 7637 standards and passes conducted and radiated emissions limits. It is suitable for integration in heavy vehicle systems where EMC compliance is essential.
Q4: How is noise measured?
A4: Noise testing follows ISO 3744 / ISO 5136 in semi-anechoic chambers. The fan's noise level is typically ≤ 68 dB(A) under standard installation and full speed (value depends on environment and mounting).
Q5: What is the predicted lifetime and failure modes?
A5: Lifetime tested under accelerated conditions using L10 methodology. Typical life ≥ 25,000 hours at nominal conditions. Possible failure modes include bearing wear or driver protection triggering (over-temperature, over-current).
Q6: How should wiring be handled to minimize voltage drop and interference?
A6:
Use short, thick wiring (12 AWG recommended)
Keep wiring routes away from high-noise circuits
Use proper crimping and shielding if needed in EMC-sensitive installations
Verify voltage at the fan terminals under load to avoid undervoltage
