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5
C
NK5
2
D
B
B
5.2 Cooling
Forced air flow cooling is used for frames MF4, MF5, MF6 and higher powers of MF3.
Enough free space shall be left above and below the frequency converter to ensure sufficient air
circulation and cooling. You will find the required dimensions for free space in the table below.
Type Dimensions [mm]
A
B C D
NXL 0002-0006 2 10 10 100 50
NXL 0001-0005 5 10 10 100 50
NXL 0003-0012 5 20 20 100 50
NXL 0016-0032 5 20 20 120 60
NXL 0038-0061 5 30 20 160 80
Table 5-4. Mounting space dimensions
Figure 5-6. Installation space
Type Cooling air required [m
3
/h)
NXL 0003—0012 5 70
NXL 0016—0031 5 190
NXL 0038—0061 5 425
Table 5-5. Required cooling air
A = clearance around the freq. converter (see also B)
B = distance from one frequency converter to another
or distance to cabinet wall
C = free space above the frequency converter
D = free space underneath the frequency converter
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