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Self-regulating Heating Cables ELSR

The ELSR (eltherm-self-regulating) heating tape can be used for frost protection and maintaining constant temperatures on vessels, pipes, valves, etc.. Except for the connections, the heating cable may be immersed to fluids. If used in an aggressive environment (the chemical or petrochemical industry), we lag the heating cable with a special chemically resistant outer jacket (fluoropolymer).

The matrix is the most important quality aspect for self-regulating heating cables. In order to be able to exercise the greatest possible influence on this production process, we manufacture the granulate for the matrix ourselves. As a result of this, eltherm is one of the top manufacturers of self-regulating heating cables in the world. This is also influenced by the special pre-treatment of the components and our long-time experience with these parameters. We are therefore able to guarantee constant high quality.

The application options for the ELSR self-regulating heating cables range from frost protection to temperature maintenance on pipes and vessels.

Brochure "Self-regulating Heating Cables"

Datasheet ELSR-SH

Datasheet ELSR-SHH


Innovative connection and power supply - El-Clic® – One system for all applications.

El-Clic Datasheet


Innovative connection and power supply - El-Clic® – One system for all applications. No matter if you want to connect a self-regulating heating cable (types ELSR-N, -LS or –W) with the power supply, you need a Tee-splice, you want to supply two or three self-regulating heating cables with power, just connect two or three self-regulating heating cables to each other, with the innovative fast connector system El-Clic of eltherm you have the perfect solution.


Function of Self-regulating Heating Tapes

Self-regulating heating tapes consist of two parallel bus wires embedded in a networked plastic heating element, doped with surrounding carbon particles. If the temperature increases during operation, the plastic expands due to molecular expansion and the distance between the carbon particles increases. Resistance increases and output drops. When it cools down, this process is reversed and output increases.

This physical property not to exceed the specified temperatures also facilitates the cross-routing of self-regulating cables and managing without a temperature cut-out device.

Self-regulating Heating Tapes ELSR, details

Video-Tutorials: Connection and Termination of Self-regulating Heating Tapes

Learn more about "Electrical Heat Tracing in Hazardous Areas"


Our products for use in potentially explosive atmospheres are checked and approved in accordance with Directive 94/9/EC. Apart from Nepsi, ABS and EAC certification and VDE guidelines, for instance, we also meet the strict requirements of the ATEX and IECEx certification. Learn more about our certificates and approvals

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Innovations in Heat Tracing
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eltherm GmbH
Ernst-Heinkel-Straße 6-10
57299 Burbach
Phone: +49 (0) 27 36 / 44 13-0
Fax: +49 (0) 27 36 / 44 13-50

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