Abstract: An electrical plug connection has a first plug part having first contact elements and a second plug part having second contact elements. The plug parts being moved in a common plane toward one another until a contact position is reached in which the contact elements establish electrical contact with one another. A wire spring is mounted on the second plug part and has at least one spring leg that is moved from an initial position by the movement of the first plug part relative to the second plug part into a locking position in which the spring leg locks the first plug part and the second plug part in the contact position. The spring leg is a freely projecting spring wire and has a free end. The second plug part has a guide member for the free end of the freely projecting spring wire. The guide member is comprised of a first portion extending parallel to the moving direction and a slanted second portion slanted outwardly away from the second plug part.