Boundary conditions

The following table shows the framework conditions that must be met in order to be able to use thermal motor protection without a temperature sensor:

For motors with forced cooling fans as well as fan-free and non-ventilated motors, the thermal motor protection must not be used without a temperature sensor.

In the case of multi-motor drives and group drives, as well as third-party motors, it is not possible to use the thermal motor protection without a temperature sensor.

For motors with speed sensor, SEW-EURODRIVE recommends using a thermal sensor.