A CB (Contactor Box) ensures power supply switching through the retarder's various power stages.
The CB's design makes it a simple, effective and proven solution.
The LSC (Low-Speed Cutoff) prevents the retarder from being unnecessarily fed when the vehicle is stopped, thus preserving electric systems of the vehicle as well as of the retarder.
A Lever allows the driver to directly control the retarder. It also allows activation of the speed control function on downhill slopes.
The various models of Telma Levers allow for smooth integration into any dashboard configuration.
Integrated into the vehicle's pneumatic air brakes system, the pressure switch controls the automatic and progressive activation of the retarder through the brake pedal.
Each pressure switch is specifically calibrated to perfectly adjust to the configuration of the vehicle in which it is installed.