Abstract: The invention relates to a connection system for establishing a detachable electrically conductive connection, including a female connector and a male connector compatible therewith. The female connector includes a socket with annular concentric contact openings and contact elements arranged within the contact openings. The male connector includes a plug with contact elements which can be inserted into the contact openings of the socket. Ferromagnetic elements are arranged concentrically around the socket or the plug, the ferromagnetic elements of the male connector and of the female connector having mutual attraction in order to generate a retaining force between the two connectors.