The invention relates to a device for controlling an electric disconnecting switch motor (1), including: a power supply circuit (2) for supplying power to the motor (1) from a network voltage source (3), said circuit including a static converter (10) controlled to output a voltage having a predetermined value to the motor (1); and one or more configuration components, the actuation of which enables the configuration (17, 18) of said circuit with a view to setting the direction of the current (1) that flows in the motor (1), characterized in that the controls of the static converter (10) and the controls of the configuration component (17, 18) are provided by two separate control units (30, 40), 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.