FAQ000258676
04 July 2023
The motor thermal state is expressed as I²t.
The thermal motor takes into account the copper and iron constants as well as the type of motor ventilation.
The motor thermal state is calculated with the square of the ratio of RMS measured current over the ITH (motor thermal protection current) value.
So, the value THR does not correspond really to a temperature, but a percent of ITH current.
