Abstract: Device for controlling an electric disconnecting switch motor, including a power supply circuit for supplying power to motor from a network voltage source, said circuit including a static converter controlled to output a voltage having a predetermined value to motor; and one or more configuration components, the actuation of which enables the configuration of said circuit with a view to setting the direction of the current (i) that flows in motor, characterised in that control of static converter and control of configuration components are provided by two separate control units, each outputting control instructions, the control instructions of one of the two control units being activated on the basis of a validation instruction from the other control unit.