Siemens 3RS10 temperature monitoring relays for PT100 / 1000 / KTY 83/84 and NTC, as well as 3RS11 temperature monitoring relays for J, K, N, T and E thermocouples are capable of solving many tasks: among other things, they can monitor the motor, values process, beyond reaching temperature limits. They control heating, ventilation and air conditioning systems. The output relay closes or opens when critical values are reached, depending on the parameter setting.