Abstract: An electrical contact unit is provided for a first main member, which has a mainly planar first mounting surface, and for a second main member, which has a mainly planar second mounting surface and is mountable on the first main member. The first mounting surface and the second mounting surface lie against each other when the second main member is mounted on the first main member. The first main member comprises a male contact member, which has an outer surface and carries electrically conductive male contacts, and a maneuvering pin, which extends out from the outer surface. By means of guide elements, the male contact member is mounted in the first main member for motion generally perpendicular to the first mounting surface between an outer position and an inner position.