Temperature monitor ATHs 2U

The ATHs 2U surface mounting thermostat with Z-piece "monitors" the set temperature, switches the device off when the set temperature is exceeded and switches it on again automatically after a hysteresis. The ATHs 2U with Z-piece is TÜV tested according to DIN 3440 and 4751 and encapsulated according to IP54. The temperature range is from + 50 ° C to + 300 ° C.

Technical description


The surface mounting thermostat works on the principle of liquid expansion. If the temperature changes in a liquid-filled sensor system - consisting of a sensor, capillary and membrane - the volume changes. The resulting stroke of the membrane actuates the microswitch by lifting. Only the temperature sensor is used to record the temperature.

Switching element

Encapsulated microswitch with single-pole changeover contact.

Switching function

If the temperature at the temperature sensor exceeds the set limit, the sensor system releases the switching plunger of the microswitch and opens or closes the circuit. If the value falls below the set limit (by the switching difference), the microswitch is returned to the starting position.