Motor Cooling Fans
Forced cooling fans for variable-speed (VFD) motors, 300–13,200 m³/h, 60–73 dB(A), 220 / 380 V, keeping motors cool across the full speed range. Final selection is confirmed at the duty point (airflow / static pressure / voltage / control mode) and by project verification.
| Model | Size | Max airflowm³/h | Max static pressurePa | PowerW | NoisedB(A) | Speedrpm | VoltageV | ||
|---|---|---|---|---|---|---|---|---|---|
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LW-G100 | — | 600 | see curve | 38 | 64 | 2,600 | 220 | Details |
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LW-G100T | — | 600 | see curve | 38 | 64 | 2,600 | 380 | Details |
|
LW-G112 | — | 660 | see curve | 40 | 65 | 2,500 | 220 | Details |
|
LW-G112T | — | 660 | see curve | 40 | 65 | 2,500 | 380 | Details |
|
LW-G132 | — | 780 | see curve | 40 | 60 | 1,400 | 220 | Details |
|
LW-G132T | — | 780 | see curve | 40 | 60 | 1,400 | 380 | Details |
|
LW-G160 | — | 1,100 | see curve | 80 | 65 | 1,400 | 220 | Details |
|
LW-G160T | — | 1,100 | see curve | 80 | 65 | 1,400 | 380 | Details |
|
LW-G180 | — | 1,200 | see curve | 80 | 66 | 1,400 | 220 | Details |
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LW-G180T | — | 1,200 | see curve | 80 | 66 | 1,400 | 380 | Details |
|
LW-G200 | — | 2,500 | see curve | 150 | 67 | 1,360 | 220 | Details |
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LW-G200T | — | 2,500 | see curve | 150 | 67 | 1,300 | 380 | Details |
|
LW-G225 | — | 4,200 | see curve | 180 | 68 | 1,400 | 220 | Details |
|
LW-G225T | — | 4,200 | see curve | 180 | 68 | 1,300 | 380 | Details |
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LW-G250 | — | 4,860 | see curve | 180 | 69 | 1,350 | 220 | Details |
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LW-G250T | — | 4,860 | see curve | 180 | 69 | 1,300 | 380 | Details |
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LW-G280 | — | 6,600 | see curve | 250 | 70 | 1,350 | 220 | Details |
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LW-G280T | — | 6,600 | see curve | 250 | 70 | 1,300 | 380 | Details |
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LW-G315 | — | 11,100 | see curve | — | 72 | 1,300 | 220 | Details |
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LW-G315T | — | 11,100 | see curve | 500 | 72 | 1,300 | 380 | Details |
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LW-G355 | — | 13,200 | see curve | — | 73 | 1,300 | 220 | Details |
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LW-G355T | — | 13,200 | see curve | 820 | 73 | 1,300 | 380 | Details |
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LW-G63 | — | 300 | see curve | 23 | 60 | 2,500 | 220 | Details |
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LW-G63T | — | 300 | see curve | 23 | 60 | 2,800 | 380 | Details |
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LW-G71 | — | 360 | see curve | 25 | 61 | 2,600 | 220 | Details |
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LW-G71T | — | 360 | see curve | 25 | 61 | 2,800 | 380 | Details |
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LW-G80 | — | 450 | see curve | 30 | 62 | 2,500 | 220 | Details |
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LW-G80T | — | 450 | see curve | 30 | 62 | 2,600 | 380 | Details |
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LW-G90 | — | 500 | see curve | 35 | 63 | 2,600 | 220 | Details |
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LW-G90T | — | 500 | see curve | 35 | 63 | 2,600 | 380 | Details |
Motor Cooling Fans — selection guide
Motor Cooling Fans: 30 models, maximum airflow 300–13,200 m³/h.
Forced cooling fans for variable-speed motors keep VFD-driven motors within temperature when the shaft fan no longer moves enough air at low speed: the LW-G line (LW-G250 to LW-G355 and larger) is matched to IEC motor frame sizes, 300–13,200 m³/h on 380 / 220 V, and runs at constant speed independent of the driven motor.
How to select from this range
- Match the fan to the motor frame size and the cooling airflow required across the ribs.
- Check the auxiliary supply — voltage and phase — since the fan runs independently of the main motor.
Where these fans are used
- VFD-driven AC motors
- Traction and crane motors
- Test benches
Curves in the selector are digitised from each model’s published catalogue curve; wind-tunnel measured curves (AMCA 210 / ISO 5801 methods) are labelled “measured” where available — see the test labs and certificates. Final selection is confirmed at the duty point and by project validation.
FAQ — Motor Cooling Fans
Which motor frame sizes are covered?
The LW-G number is the frame class (250, 280, 315, 355 and so on); the model data lists the matching IEC frame and mounting. Adapters for other frames on request.