Electromechanical temperature controllers

The thermostats are electromechanical controllers for monitoring the temperature. The devices are in a liquid-filled measuring system consisting of a temperature sensor, capillary line, Bourdon spring and a microswitch. The temperature-dependent volume change in the measuring system is converted into a rotary movement by the spring without a transmission gear. The rotary movement of the pointer shaft activates a switch to open or close the contact.