Boundary conditions

You may only use the thermal motor protection without temperature sensor if the following conditions are met:

Boundary conditions

General information

Observe the instructions in the documentation (operating instructions and product manual), in particular the chapters "Configuration of the drive unit" and "Technical data".

Type of cooling

Natural cooling

Ambient temperature

-20°C to +40°C

Thermal class of motor winding

155 (F), 180 (H)

Installation altitude

h ≤ 1000 m

You must not use the thermal motor protection without temperature sensor with the following motors:

  • Motors with forced cooling fan
  • Motors without fan
  • Non-ventilated motors
  • Third-party motors