WBLF-1001-BS1400
Sunlight
| Voltage: | |
|---|---|
| Availability: | |
| Quantity: | |
| Model | WBLF-1001-BS1400 |
| Min fan speed | 2000rpm |
| Max fan speed | 4350rpm |
| Noise level | 76dB |
| Weight | 2.5kg |
| Lifetime | up to 40000 hours depending on mission profile |
| Time from 0 rpm to max speed | 8S |
| Range of working temperature | -40 ~ +85℃ |
| Operating power supply voltage range | 16-32V |
High-power 400W performance in compact 255 mm format
PWM / stepless regulation for modern cooling systems
IP68 sealing and strong durability in harsh environments
Quiet & efficient brushless design
Fully in-house design & manufacture (blade, motor, driver)
Certified for EMC / ISO standards
Customization available — wiring, control, mounting, blade geometry
Common applications include:
Truck / heavy vehicle radiators & condensers
Refrigerated transport / reefer cooling
Construction & agricultural equipment
Buses, ambulances, utility vehicles
Replacement of SPAL335 / BBL335 in cooling systems
Heat management in electric vehicles / charging stations
New energy vehicle


Mount on flat, rigid surfaces to minimize vibration
Respect airflow direction — inlet/outlet clearance is critical
Use correct wiring polarity (black = +, brown = –)
Keep supply voltage within 18–32V
Avoid exposure to corrosive chemicals or extreme radiant heat
Inspect wiring, connectors, and mounting bolts periodically
Supports PWM / analog / digital control; shield control wiring in EMC-sensitive systems
Sunlight provides the market with a wide range of high performance brushless fans and blowers, specially designed to meet new generation cooling systems requirements in every industry.
Currently our company has passed ISO9001 and YS16949,also brushless axial fans have got then CE,RoHS certification.
We attended Bauma Fair In German and Shanghai,Frankfurt Shanghai,CIAAR Shanghai.
Shanghai BAUMA Exhibition
Shanghai Frankfurt Exhibition
Q1: What is the current draw at full load (24V)?
A1: The draw depends on load and backpressure; for 400W at 24V, expect ~16–20 A under nominal conditions (use the performance curve for precise values).
Q2: What protections are integrated in the driver?
A2: Includes reverse polarity protection, over-current protection, thermal/overheat shutdown, and soft-start ramp to reduce inrush current.
Q3: How is EMC / interference performance validated?
A3: The fan has passed EMC testing per ISO 16750 / CISPR 25 standards, complying with both conducted and radiated emission limits.
Q4: How is noise tested & what is the measured acoustic level?
A4: Noise is measured in a semi-anechoic chamber per ISO 3744 / ISO 5136, at ~1 m distance. The published noise is ~76 dB, but actual levels depend on installation conditions.
Q5: What is the typical lifetime and failure modes?
A5: Designed for up to 40,000 hours under favorable conditions. Failures normally occur in bearings or via driver protection (over-temperature / over-current).
| Model | WBLF-1001-BS1400 |
| Min fan speed | 2000rpm |
| Max fan speed | 4350rpm |
| Noise level | 76dB |
| Weight | 2.5kg |
| Lifetime | up to 40000 hours depending on mission profile |
| Time from 0 rpm to max speed | 8S |
| Range of working temperature | -40 ~ +85℃ |
| Operating power supply voltage range | 16-32V |
High-power 400W performance in compact 255 mm format
PWM / stepless regulation for modern cooling systems
IP68 sealing and strong durability in harsh environments
Quiet & efficient brushless design
Fully in-house design & manufacture (blade, motor, driver)
Certified for EMC / ISO standards
Customization available — wiring, control, mounting, blade geometry
Common applications include:
Truck / heavy vehicle radiators & condensers
Refrigerated transport / reefer cooling
Construction & agricultural equipment
Buses, ambulances, utility vehicles
Replacement of SPAL335 / BBL335 in cooling systems
Heat management in electric vehicles / charging stations
New energy vehicle


Mount on flat, rigid surfaces to minimize vibration
Respect airflow direction — inlet/outlet clearance is critical
Use correct wiring polarity (black = +, brown = –)
Keep supply voltage within 18–32V
Avoid exposure to corrosive chemicals or extreme radiant heat
Inspect wiring, connectors, and mounting bolts periodically
Supports PWM / analog / digital control; shield control wiring in EMC-sensitive systems
Sunlight provides the market with a wide range of high performance brushless fans and blowers, specially designed to meet new generation cooling systems requirements in every industry.
Currently our company has passed ISO9001 and YS16949,also brushless axial fans have got then CE,RoHS certification.
We attended Bauma Fair In German and Shanghai,Frankfurt Shanghai,CIAAR Shanghai.
Shanghai BAUMA Exhibition
Shanghai Frankfurt Exhibition
Q1: What is the current draw at full load (24V)?
A1: The draw depends on load and backpressure; for 400W at 24V, expect ~16–20 A under nominal conditions (use the performance curve for precise values).
Q2: What protections are integrated in the driver?
A2: Includes reverse polarity protection, over-current protection, thermal/overheat shutdown, and soft-start ramp to reduce inrush current.
Q3: How is EMC / interference performance validated?
A3: The fan has passed EMC testing per ISO 16750 / CISPR 25 standards, complying with both conducted and radiated emission limits.
Q4: How is noise tested & what is the measured acoustic level?
A4: Noise is measured in a semi-anechoic chamber per ISO 3744 / ISO 5136, at ~1 m distance. The published noise is ~76 dB, but actual levels depend on installation conditions.
Q5: What is the typical lifetime and failure modes?
A5: Designed for up to 40,000 hours under favorable conditions. Failures normally occur in bearings or via driver protection (over-temperature / over-current).
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