Abstract: An electric plug connector for fastening to a wall, with a plug connector housing, on which, by means of a coupling sleeve, a plugged-in counter-plug connector, in the form of a plug or a jack, is securable, and with a flange plate with a central breakthrough, for receiving and for connecting the plug connector housing to a wall, the flange plate comprising through-bore holes for fastening screws. In the electric plug connector according to the invention the flange plate is implemented as one piece and detachably connected with the plug connector. An internal usable clearance of the central breakthrough of the flange plate corresponds to an outer diameter of a coupling sleeve of the plug connector and/or to an outer diameter of the plug connector housing. This embodiment permits in the radial direction of the plug connector a form-fitting connection of the flange plate with the plug connector housing without a special shape forming of the housing being required for this purpose.

Abstract: Electrical plug-in connection (1), having a plug part (2) and a mating plug part (3), which can be plugged together and produce a large number of electrical plug-in connections, at least the plug part (2) or the mating plug part (3) bearing, on its body (19, 24), a union nut (4), which can be screwed to the mating plug part (3) or the plug part (2) and secures the plug-in connection (1) against becoming disconnected in an undesirable manner. The union nut (4) has, at both of its ends, an internal thread (28, 7) for simultaneously screwing it to the plug part (2) and the mating plug part (3), the internal threads (7, 28) being formed in the opposite direction.

Abstract: A multipole connector for connecting a multipole-conductor cable comprising a cable receptacle and a connection piece, with the stranded conductors for axial contact of the free ends with assigned contact spikes of the connection piece being guided by axially parallel channels in the cable receptacle and being retained in the channels by clamping force by means of a coupling ring. The cable receptacle comprises a stranded-conductor mount for immovably fastening the stranded conductors and joining it, a terminal mounting, facing the connection piece. The stranded-conductor mount comprises a stationary fastening plate facing the terminal mounting, and a clamping plate movable in axial direction which when moving in the direction of the fastening plate, evenly and immovably clamps every stranded conductor against pulling movements.