actuating device for movable parts , such for closure parts for apertures in vehicles , having a reversible direct current drive motor , a polarity reversing actuating switch in the motor circuit for applying direct current to the motor circuit with a polarization corresponding to the desired motor rotational direction ; a relay with a switch contact in the motor circuit which is in series with the polarity reversing switch ; and further , having a position responsive switch connected with the relay control circuit for actuating the relay in a reference position of the movable parts , for the purpose of deactivating the drive motor by opening the switch contact . the relay is a direct current relay , which , upon application of a first or second voltage level at its control circuit , closes or , respectively , opens the switch contact . connected with the relay control circuit , there is an electronic relay actuating stage with a storage capability , with stage , upon closing of the polarity reversing actuating switch in either direction , at least when the movable part is in the reference position , has applied a setting signal to an input thereof , in response to which setting signal the relay actuating stage applied the first voltage level to the relay control circuit , at least until the movable part has left the reference position .