Water heater thermostat 1.bakelite body, 2.horizontal terminals, ... UL,JET,KTL,etc. Products InformationKSD1 and KSD series thermostats are one type of small bimetal temperature ... control or overheat protection for such as hot-water heater, kettle, water dispenser, electronic disinfection device, dryer, ... t let water or other liquid leak into the thermostat.* The surface has to been installed flatly and ...