Siemens SIRIUS 3RW44 User Manual page 114

Device Functions
Temperature sensor
6-22
The temperature sensor motor protection function measures the motor's stator
winding temperature directly using a measuring sensor in the motor, i.e. a motor
with a measuring sensor wound into the stator winding is required.
Two different types of measuring sensors are available for the evaluation.
• PTC type A thermistors ("Type A sensors")
• Thermo click
The wiring and the sensors are checked for wire breaks and short-circuits.
Notice
If the soft starter is switched off via a motor protection or device protection
tripping, the action cannot be acknowledged using the "Trip reset" function until
the displayed cooling time has expired.
SIRIUS 3RW44 manual
GWA 4NEB 535 2195-02 DS 06