Description
2.8 Communication and system connection
3WA1 air circuit breaker
158 Equipment Manual, 02/2023, 92310000002-06
Temperature sensor
A temperature sensor is integrated in the COM190 and COM150 communication
modules. Since the sensor is installed outside the circuit breaker, it only provides
approximate temperature values inside the control cabinet. The temperature is always
measured in module A.
An additional temperature sensor is included in the breaker status sensor BSS200. This
sensor provides the temperature values in the circuit breaker.
Both temperature sensors require no further calibration.
Note
Accuracy of the measured values
temperature sensors may also be warmed by the surrounding electronic
components. Thus, deviations of the measured temperature values from the actual
ambient temperature are possible.
For more information, see Chapter Metering function (power metering funct
ion)
130).
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