Rugged technologies that stand the test of time

For several decades, Contelec has been involved in the development and manufacture of wire wound and cermet potentiometers. This extensive experience has led to extremely reliable products. High-quality wire wound and cermet potentiometers are primarily suitable for use as ‘adjustable potentiometers’ in which the user specifies the required value. To a limited extent – in cases where the life expectations are not too high – they are also suitable for control applications.

The resistance wire/cermet resistance and the wiper system are accurately matched to ensure maximum reliability throughout the entire lifetime of the system.

Cermet potentiometers – the principle
Using a screen-printing process, a thick coating of metal/metal oxide is printed onto a ceramic carrier material. This layer is hardened at high temperature. A wiper contact slides on the coating and picks up the voltage signal at the relevant point. Due to the operating principle, the resolution is infinite.

Automotive / Motor Sports

Railway technology


Heating / ventilation / air conditioning



Mechanical engineering


Measurement instruments

Mobile vehicles

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