Temperature monitoring
Thermal contacts TC0
The TCO thermal contact (thermal break contact) is a bimetallic switch. The thermal contact
monitors the motor winding temperature; e.g., at excessively high temperatures, it switches
the upstream motor relay. The motor is disconnected from the line voltage and coasts down
via the relay.
Funcon Normally-closed contact
Operang temperature °C 150
Min. operang temperature
tolerance
°C -5
Max operang temperature
tolerance
°C 5
Min. reset temperature °C 90
Max. reset temperature °C 135
Max. AC input current A 2.5
Max. AC input voltage V 250
Max. DC input current A 40
Max. DC input voltage V 12
PTC thermistor
The PTC thermistor is operated in conjuncon with a tripping unit. If the motor becomes too
hot, the motor can be switched o with the aid of a contactor. In contrast to the thermal
contact, a quick restart is possible.
Funcon Sprunghae Widerstandsänderung
Operang temperature °C 155
Min. operang temperature
tolerance
°C -5
Max operang temperature
tolerance
°C 5
Temperature °C -20
Rated resistance
155 °C 1330
140 °C 550
-20 °C 100
Product extensions
Temperature monitoring
Thermal contacts TC0
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