Vacon NX series - Page 64

5
vacon • 62 Installation
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Figure 32. Cooling airflow for the FI13 unit
Table 28. Power losses and required cooling air for the Active Front End units
Type
Enclosure
size
Heat dissipation
(W)
Cooling air required
(m
3
/h)
Minimum air holes on
switchgear (mm
2
)
NXA_0168 - 0261 5
NXA_0125 - 0170 6
FI9
3540
3320
1150
Inlet: 55000
Outlet: 30000
NXA_0385 - 0460 5
NXA_0261 - 0325 6
FI10
6160
6070
1400
Inlet: 65000
OUtlet: 40000
NXA_1150 - 1300 5
NXA_0920 - 1030 6
FI13
17920
19050
4200
Inlet: 195000
OUtlet 105000