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LWAD4020LD-05 product photo
LWAD4020MD-10 product photo
  • Frame size40 mm
  • Max airflow11.4 m³/h
  • Max static pressure89 Pa
  • Voltage12 V
  • Speed6,500 rpm
  • Input power1.44 W
  • Noise53.5 dB(A)

LWAD4020LD-05 DC Axial Cooling Fan 40 mm

40 mm | DC | Max airflow 11.4 m³/h | Max static pressure 89 Pa | 53.5 dB(A)

SKU: LWAD4020LD-05 Categories: , ,
  • Factory direct
  • OEM / ODM
  • Samples in 1–3 days
  • Production 15–30 days
  • 18-month warranty
  • CE · ETL · RoHS
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Dimensional drawingDimensions in mm. Confirm against the final approval drawing before machining cut-outs.
LWAD4020LD-05 Dimensional drawing
Performance curve (P-Q)Static pressure vs. airflow. Curve numbers correspond to supply voltage / speed grades.
LWAD4020LD-05 Performance curve (P-Q)

Need a non-standard size or another format? Ask an engineer or search the download center.

LWAD4020LD-05 is a LONGWELL DC Axial Cooling Fan from the DC Axial Cooling Fans range, frame size 40 mm, rated 12 V DC, maximum airflow 11.4 m³/h, maximum static pressure 89 Pa, noise 53.5 dB(A), input power 1.44 W. The low-voltage brushless DC motor suits battery-powered equipment and electronics cooling with speed control on demand.

Technical data

Model LWAD4020LD-05
Series LWAD4020
Motor type DC
Rated voltage 12 V
Current 0.12 A
Input power 1.44 W
Speed 6,500 rpm
Max. airflow 11.4 m³/h
Max. static pressure 89 Pa
Noise 53.5 dB(A)
Frame size 40 mm
Dimensions 40x20mm
Impeller material Plastic(UL94-VO)

Typical applications

  • Power supplies and inverters
  • Telecom and server cabinets
  • Battery packs and EV chargers
  • Medical and laboratory equipment

Series LWAD4020: models in the same series share the impeller and motor platform and differ in speed grade, voltage or lead-out / terminal-box configuration — compare them in the table below or ask for the best fit at your duty point.

Nameplate values: maximum airflow is measured at zero static pressure and maximum static pressure at zero airflow; the two never occur together. Confirm the operating point on the performance curve. Final selection is subject to the duty point (airflow / static pressure / voltage / control mode) and project verification.

Alternatives with the same frame size (40 mm · DC)

Same impeller, different speed grade, power or wiring. Step up for more airflow, step down for lower noise.

ModelMax airflowMax static pressureSpeedPowerNoiseVoltage
LWAD4020LD-05 this model 11.4 m³/h89 Pa 6,500 rpm1.44 W53.5 dB(A)12 V
LWCD-40250MN-07 87 m³/h23 Pa 2,400 rpm2.64 W35 dB(A)24 V View
LWCD-40290MN-07 104 m³/h24 Pa 2,400 rpm3.12 W35 dB(A)24 V View
LWCD-40290LN-06 104 m³/h24 Pa 2,400 rpm2.4 W35 dB(A)12 V View
LWCD-40350MN-07 121 m³/h24 Pa 2,400 rpm3.6 W36 dB(A)24 V View
LWCD-40350LN-06 121 m³/h24 Pa 2,400 rpm2.88 W36 dB(A)12 V View
LWCD-40420MN-07 146 m³/h25 Pa 2,400 rpm4.08 W37 dB(A)24 V View
LWCD-40420LN-06 146 m³/h25 Pa 2,400 rpm3.48 W37 dB(A)12 V View
LWCD-40530MN-06 176 m³/h25 Pa 2,400 rpm4.56 W37 dB(A)24 V View
LWCD-40610MN-06 203 m³/h26 Pa 2,400 rpm5.04 W37 dB(A)24 V View
LWCD-40700MN-06 232 m³/h26 Pa 2,400 rpm5.52 W38 dB(A)24 V View
LWCD-40800MN-06 236 m³/h25 Pa 2,000 rpm6 W35 dB(A)24 V View
LWCD-40854MN-06 252 m³/h26 Pa 2,000 rpm6.72 W35 dB(A)24 V View
LWCD-40920MN-06 272 m³/h26 Pa 2,000 rpm7.44 W36 dB(A)24 V View
LWCD-401055MN-06 311 m³/h27 Pa 2,000 rpm8.4 W36 dB(A)24 V View

Not sure which one? Send us the duty point (airflow / static pressure / noise limit) — use the selector or ask an engineer.

Related products

Other models in the LWAD4020 seriesSame impeller, different speed grade or wiring

LWAD4020KX-01 product photoLWAD4020KX-0140 mm · 18.6 m³/h · 140 Pa · DCsame seriesLWAD4020KH-02 product photoLWAD4020KH-0240 mm · 16.8 m³/h · 141 Pa · DCsame seriesLWAD4020KM-03 product photoLWAD4020KM-0340 mm · 15 m³/h · 142 Pa · DCsame seriesLWAD4020KL-04 product photoLWAD4020KL-0440 mm · 13.2 m³/h · 143 Pa · DCsame seriesLWAD4020KD-05 product photoLWAD4020KD-0540 mm · 11.4 m³/h · 84 Pa · DCsame seriesLWAD4020LX-01 product photoLWAD4020LX-0140 mm · 18.6 m³/h · 85 Pa · DCsame series

Adjacent sizesOne size up when airflow is short, one size down when it is too much

LWA-680-03 product photoLWA-680-0343 mm · 850 m³/h · 1,950 Pa · ACadjacent sizeLWA-1100-03 product photoLWA-1100-0343 mm · 1,200 m³/h · 2,550 Pa · ACadjacent sizeLWA-950-03 product photoLWA-950-0343 mm · 1,050 m³/h · 2,400 Pa · ACadjacent sizeLWA-750-03 product photoLWA-750-0343 mm · 900 m³/h · 2,200 Pa · ACadjacent sizeLWA-370-04 product photoLWA-370-0437 mm · 760 m³/h · 1,500 Pa · ACadjacent sizeLWA-550-03 product photoLWA-550-0337 mm · 800 m³/h · 1,800 Pa · ACadjacent size

Alternatives at a similar dutySimilar airflow, different construction or motor platform

LWFD7515MX-01 product photoLWFD7515MX-0175 mm · 11.4 m³/h · 165 Pa · DCsimilar dutyLWAD5010ML-04 product photoLWAD5010ML-0450 mm · 11.4 m³/h · 15 Pa · DCsimilar dutyLWFD7515LX-01 product photoLWFD7515LX-0175 mm · 11.4 m³/h · 165 Pa · DCsimilar dutyLWAD5010LL-04 product photoLWAD5010LL-0450 mm · 11.4 m³/h · 15 Pa · DCsimilar dutyLWFD7515KX-01 product photoLWFD7515KX-0175 mm · 11.4 m³/h · 165 Pa · DCsimilar dutyLWAD5010KL-04 product photoLWAD5010KL-0450 mm · 11.4 m³/h · 15 Pa · DCsimilar duty

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