Relays HWTM and HWTM2 check the availability of the 3 phase network and the temperature of the motors using integrated PTC probes
The "phase" and "temperature" control functions are independent of one another
Control of 3 phase networks： phase sequence, phase failure Multi-voltage True RMS measurement Motor temperature control via PTC probes With line break or probe short-circuit detection Version with fault latching function and reset / test LED status indication
