230V Water-Proof Self Regulating Heating Cable

There is a uniform core strip of PTC material between the two parallel metal busbars. When the two busbars at one end of the cable are connected to the power source, current flows laterally from one busbar through the PTC material layer to the other busbar. The PTC layer is a resistance heating body that is continuously connected in parallel between the busbars to convert electrical energy into heat. The core strip resistance increases with temperature, reaching about 65 degrees, the resistance is so large that it almost blocks the current, and the core strip temperature reaches the high limit and no longer rises but automatically limits the temperature. The self-limiting temperature heating belt has uniform temperature, does not overheat , saves electric energy, and has a rapid heating temperature. It can be arbitrarily cut and used within the longest use length of the electric heating belt, and can be overlapped and crossed.