Frame heaters are mainly used for heating heads in the industrial sector, especially plastics processing heads. They can also be used to heat metal containers or baths that have flat outer surfaces. The maximum operating temperature of micronite insulation is 300 ° C and ceramic insulation 450 ° C. The permissible surface power load is 3.5 W / cm². Frame heaters can be made with holes, cutouts, various types of electrical connections such as the cable, the plug.
