The CPTCx cartridge heater is mostly used in the refrigeration industry, with the aim of evaporating the condensation water produced by equipment such as fridge counters, refrigerated storage cabinets, refrigerated display cases, etc. The particularity of this heater is the PTC self-regulating ceramic component installed inside the cartridge, which develops its power according to the temperature, producing the maximum power at the lowest temperature and gradually reducing its emission as the temperature increases.