Anti-condensation heaters can be fitted to motors whose windings are exposed to climatic conditions where there is a risk of condensation, e.g. stationary motors in a damp environment or motors subject to considerable temperature fluctuations. Anti-condensation heating must not be switched on during operation.
Instead of an anti-condensation heater, another possibility is to connect a voltage that is approximately 4 to 10 % of the rated motor voltage to stator terminals U1 and V1; 20 to 30 % of rated motor current is sufficient to heat the motor.
|
Motor size |
Heating power |
|---|---|
|
|
W |
|
63 … 80 |
12.5 |
|
90 … 112 |
50 |
|
132 … 200 |
50 |
|
225 ... 250 |
92 |