Thermocouple connection head Thermocouple connection head terminal block insulater, Material:Aluminum, Color:Silver. KSC thermocouple ... cover :aluinium alloy,stainless steel. Materials of connector:bakelite,ceramics. Connect terminal assorted to 2P,3P,4P,6P. Protection ... in industrial control and measurement field, such as machinery, electrical cabinet, power sub-station, industrial automation, etc.. ...