Cat temperature switches utilize bimetallic thermostats to perform electrical circuit switching. Switch types available are normally open, normally closed, SPDT or SPST. The switches are available with a variety of actuation and deactuation temperature set points. Attributes:Available in various thread sizes, connector types and harness lengthsApplications:Temperature switches are used on engine related applications such as air systems, engine oil systems, cooling systems, HVAC systems etc.