The KOBOLD temperature switches work with a bi-metal switch and serve to monitor temperature of liquids in piping and vessels.
The instruments are available in brass or stainless steel and are screwed through a G 3/4 screw-in thread into a screwed socket that is welded onto the line or vessel.
The temperature contacts have a fixed switch point in intervals of 5° C in the range 30° to 50° C, and in intervals of 10° C between 50° C and 120° C.
They are available as N/C or N/O contacts. Standard electrical connection is made through a plug connector, in which a pilot lamp can be integrated as an additional output state indicator.