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Cooling Fans > UltraFlo > U40X
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Dimension drawing for Nidec W40S UltraFlo vane axial cooling fan
W40S Vane Axials
Dimension Drawing
Nidec UltraFlo W40S 40mm x 28mm vane axial cooling fan
Free-Running
Model*
Air
Flow
(CFM)
Max.
Static
Pressure
(inwg)
Nominal
Voltage
(V)
Voltage
Range
(V)
Current
(A)
Input
Power
(W)
Sound Level Bearing Operating
Temp.
Min/Max
(°C)
Sound
Pressure
(dBA)
NPEL
(IPC-
9591)
W40S12BUA5-51 24 1.47 12 7.0-13.8 0.55 6.6 52.1 6.8 Bels Ball -10/+70
W40S12BGA5-51 21 1.23 12 7.0-13.8 0.40 4.8 51.0 Ball -10/+70
W40S12BHA5-51 15 0.58 12 7.0-13.8 0.17 2.0 40.0 Ball -10/+70
W40S12BMA5-51 11 0.41 12 7.0-13.8 0.14 1.7 34.5 Ball -10/+70
* Monitor and control options, designated by the last characters of model names, are described here.
Air performance graph for Nidec W40S12BGA5-51 UltraFlo cooling fan
Air performance graph for Nidec W40S12BHA5-51 UltraFlo cooling fan
Air performance graph for Nidec W40S12BMA5-51 UltraFlo cooling fan
Air performance graph for Nidec W40S12BUA5-51 UltraFlo cooling fan
W40S is also available as a series of feedback-governed, speed-stable fans. To see descriptions of those alternative models, click here.
  Free-Running W40S12BUA5
Operating
Voltage
(V)
Fraction
of Max.
Air Flow
Fan
Speed
(rpm)
Static
Pressure
(inwg)
NPEL
(Bels)
13.8 100% 17810 0 6.9
80% 17670 0.51 7.0
20% 18120 1.29 7.3
12.0 100% 16000 0 6.8
80% 15890 0.42 6.9
20% 16630 0.88 6.9
7.0 100% 9840 0 5.5
80% 9870 0.14 5.7
20% 10110 0.34 5.8
Sound levels in the table are mean values, measured as the fans - without guards or other accessories - expel air from a test plenum on which they are mounted, using test methods and conventions prescribed by IPC-9591.
fans vane axial fans cooling fans 40mm fans computer fans case fans air movers dc fans 12V fans W40S fans Nidec UltraFlo

W40S12BM W40S12BMA5 W40S12BMA5-51 W40S12BMA5-52 W40S12BMA5-53 W40S12BMA5-54 W40S12BMA5-55 W40S12BMA5-56 W40S12BMA5-57 W40S12BMA5-58 W40S12BMA5-59 W40S12BMA5-60 W40S12BMA5-61 W40S12BMA5-62 W40S12BMA5-63 W40S12BMA5-64 W40S12BMA5-65

W40S12BH W40S12BHA5 W40S12BHA5-51 W40S12BHA5-52 W40S12BHA5-53 W40S12BHA5-54 W40S12BHA5-55 W40S12BHA5-56 W40S12BHA5-57 W40S12BHA5-58 W40S12BHA5-59 W40S12BHA5-60 W40S12BHA5-61 W40S12BHA5-62 W40S12BHA5-63 W40S12BHA5-64 W40S12BHA5-65

W40S12BG W40S12BGA5 W40S12BGA5-51 W40S12BGA5-52 W40S12BGA5-53 W40S12BGA5-54 W40S12BGA5-55 W40S12BGA5-56 W40S12BGA5-57 W40S12BGA5-58 W40S12BGA5-59 W40S12BGA5-60 W40S12BGA5-61 W40S12BGA5-62 W40S12BGA5-63 W40S12BGA5-64 W40S12BGA5-65

W40S12BU W40S12BUA5 W40S12BUA5-51 W40S12BUA5-52 W40S12BUA5-53 W40S12BUA5-54 W40S12BUA5-55 W40S12BUA5-56 W40S12BUA5-57 W40S12BUA5-58 W40S12BUA5-59 W40S12BUA5-60 W40S12BUA5-61 W40S12BUA5-62 W40S12BUA5-63 W40S12BUA5-64 W40S12BUA5-65