Temperature switch and sensor M14-1.5mm VSG40018/A

The combined temperature switch and sensor is used to read the temperature and serves as an alarm switch if the temperature exceeds the safety limit. Both connections run via the housing / screw thread to the earth contact. The sensor is therefore not unearthed.
Connection one switches the contact through when the temperature is too high. At terminal two, the resistance changes as the temperature changes.

Physical specifications

Thread: M14-1.5

For clock with temperature range from 40 to 120 oC and equal to 287.4-22,7 ohm

(51ohm+/-4@90 deg. C)

Datasheet: Link VSG40018/A

Temperature switch @120 deg. C