Self-regulating heating cable, the resistivity of its heating element has a very high "PTC" (Positive Temperature Coefficient) and is connected in parallel with each other. The characteristics are: it can automatically limit the heating temperature, and automatically adjust the output power according to the temperature of the heated object without any additional equipment; it can be shortened arbitrarily or connected to a certain length for use, and allows multiple overlapping without burnout concerns. These characteristics make Self-regulating heating cable have the advantages of preventing overheating, easy operation and maintenance, and saving electric energy. It is suitable for temperature control, constant temperature antifreeze and heat preservation of pipelines, equipment and containers, especially when there are materials that are easy to decompose, deteriorate, crystallize, condense and freeze. It is widely used in the fields of petroleum, chemical industry, electric power, metallurgy, light industry, food, refrigeration, construction, gas, agricultural and sideline products production and processing.

Self-regulating heating cables are classified according to power per meter, voltage, maintenance temperature, and maximum withstand temperature: low-temperature series, medium-temperature series, and high-temperature series, and can be customized according to needs.