Self-regulating heat cables

Self-regulating heat cables are a part of our wide product range. Whether as freeze prevention to keep your pipeline or medium frost-free or for temperature maintenance - we have got the right solution for your application. With our ELSR-series (ELtherm-Self-Regulating) we offer you a self-limiting heating cable for different ranges and temperature classes. The main advantage: self-regulating heat cables can be cut to length off the roll and have a constant power per meter. Furthermore, they are very easy to install.

• Low Temperature: Up to 80 °C
• Medium Temperature: Up to 110 °C
• High Temperature: Up to 250 °C

A self-regulating heat trace cable is applied in a wide range of industries. From heating a sugar silo to prevent condensation, through to gutter heating – we will find an individual solution for your requirements. A self-regulating heating cable is planned individually and tailor-made for you by our engineers. For Example: Via a pipeline, service water passes through a hall. To protect the water from frost in winter, the pipelines are to be heated. This prevents the pipes from freezing without having to heat up the entire hall. The ELSR-N heating cable (e.g.) is suitable for this purpose.

• Chemistry and petrochemistry (ELSR-N,-LS, -H, SH, -SHH) 
• Food processing industry (ELSR-N,-LS, -M) 
• Maritime and offshore (ELSR-N,-LS) 
• Potable water pipes and flexible tubes (ELSR-M-AF/BF) 
• Open area (ELSR-Ramp) 
• Cryogenic storage tanks (ELSR-FHP) 
• Oil and Gas (ELSR-H, -SH, SHH)

Self-regulating or self-limiting? These terms are often used as synonyms, with self-limiting most accurately describing how it works. Self-limiting heating cables consist of two parallel bus wires embedded in a heating matrix doped with carbon particles. Above this is the insulation and (depending on the design) aluminium foil or protective braid and finally the outer jacket. When the temperature rises in operation, molecular expansion increases the distance between the carbon particles. The resistance increases and output drops. When temperatures fall, this process is reversed and output increases. This procedure regulates or limits the heat depending on the ambient temperature and prevents overheating of the trace heating.

The ELSR (eltherm-self-regulating) trace heater is used for freeze prevention and temperature maintenance on vessels, pipes, valves, etc. It may be immersed in fluids. Equipped with a chemicallyresistant protective jacket* (see “BOT” version), pipe heating is not only possible inside a water pipe, but is also in aggressive environments. Further information on nominal voltage, bending radius or ambient temperatures can be found on the detailed web pages of the products. There you will also find further documents such as data sheets and approvals / certificates. Feel free to check out our youtube channel for assembly instructions as well.

*List of chemical Resistance for Self-Regulating Trace Heaters

We develop complete solutions for processes in production, storage, handling, and transport. Our engineers are committed to understanding your exact technical requirements.  Their pride is to develop the best possible heat tracing solution.