Sensorwell

Epoxy Overmold

These thermostats have a temperature-sensitive bimetal disc, electrically and thermally isolated from the switch that is used to actuate the normally closed contacts. The contacts open when surface or ambient temperatures increase to the operating set point of the calibrated bimetal disc.

The entire switch is enclosed in a phenolic or ceramic housing; the bimetal disc is retained by a metal heat conducting end cap. The unit is then encapsulated in epoxy.