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Humidity
NOTICE
Component damage caused by condensation
Condensation on the components can cause them to fail.
• Select the air circuit and arrangement of the cooling equipment in such a way that no
• If required, an anti-condensation heater must be installed in the cabinet.
When using air-conditioning units, the relative humidity of the air that is discharged can increase
as a result of the air being cooled in the air-conditioning unit. Under certain circumstances, the
humidity can exceed the dew point.
• To avoid condensation, arrange the air-conditioning units so that cold discharged air is not
directly blown onto the components.
• If required, use air guidance baffles to ensure that the air is adequately mixed with the air
inside the control cabinet. Mixing with warm air reduces the relative humidity down to
uncritical values.
8.12.2
Ventilation clearances
Table 8-20
Component
Line filters for Smart Line Modules
Line reactors for Smart Line Modules
Smart Line Modules
Booksize power units
Equipment Manual, 01/2022, 6SL3097-6AC30-0BP0
condensation can form on the components.
Ventilation clearances above and below components
Control cabinet design and EMC booksize
8.12 Control cabinet cooling
Minimum clearance [mm]
100
100
80
141
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