Temperaturregler mit Flüssigkeitsfühler Typ 121 051

Type 121 051

Capillary thermostat

The capillary thermostat is suitable for controlling or monitoring a freely selectable temperature within a set temperature range. Typical applications are deep-fat fryers, mini-ovens, boilers, grills etc. and wherever it is necessary to monitor the temperature of liquid, gas or solid media.

The thermostat consists of a switch head and a closed hydraulic system. A liquid-filled sensor bulb is used as a sensing element. This must be in direct mechanical contact with the medium to be controlled. As soon as the preset temperature is reached, the snap action contact opens the circuit. When the temperature has dropped by the differential the contact automatically opens the circuit again.

  • Small size
  • High electrical load
  • Switch head can be mounted in any position
  • Distance between sensor bulb and switch head up to 1m
  • Also available with built-in compensation for the influence of ambient temperature on the switch head
  • Temperature range adjustable to suit customer requirements
  • Spindle length freely selectable with various turning ranges


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