E7800 Motorized Potentiometer.The SELCO E7800 Motorised Potentiometer is normally used as a link between increase/decrease relay contacts (or push buttons) and equipment requiring control from an external potentiometer (e.g. the speed trim of an electronic governor).All three wires of the potentiometer are easy to connect to, on external terminal block, therefore providing the best possible flexibility for almost any application.The design of the E7800 is made so, the potentiometer will “remember” its position even when supply is lost.

The potentiometer can easily be replaced when installed.  There are access from the back of the device, when the four corner screws are removed.  With an alan key the coupling can be taken of the potentiometer shaft, and a new potentiometer can be installed in the reverse order.