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A plug connector having a housing located at a plate opening in an operating position, and the plug connector contains wires and/or braids of a cable and electrical contacts. Assembly on the plate is realized by a flange plate attached to the outside of the housing having an interior recess with an

A plug connector having a housing located at a plate opening in an operating position, and the plug connector contains wires and/or braids of a cable and electrical contacts. Assembly on the plate is realized by a flange plate attached to the outside of the housing having an interior recess with an interior dimension for engaging the housing of the plug connector. The flange plate is constructed as a single piece, and one of the interior recesses has a continuous slot extending to the outside, which slot acts as a clamp slot with the interior dimension of the interior recess being made smaller by narrowing the slot, and an arrangement is provided, by which the flange plate can be pressed in and thus clamped onto the outside of the housing. Preferably, the slot is reduced by at least one clamp screw with locking threads, or a lock nut.

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The invention claimed is: 1. Plug connector (1) comprising a housing (2) that is arranged in a position of use in or at an opening (3) in a plate (4) or passes through the opening and contains wires or braids of a cable (5) and electrical contacts, the plug connector (1) is mountable in a front-pla

The invention claimed is: 1. Plug connector (1) comprising a housing (2) that is arranged in a position of use in or at an opening (3) in a plate (4) or passes through the opening and contains wires or braids of a cable (5) and electrical contacts, the plug connector (1) is mountable in a front-plate assembly or in a back-plate assembly, in a region of the opening (3) of the plate (4) by a flange (6), and the flange (6) is formed as a flange plate that is positionable at a later time on an outside of the housing (2) of the plug connector (1), and includes an inner recess (7) with an inner periphery (8) for gripping around the housing (2) of the plug connector (1), the flange plate (6) has a one-part construction and a slot (9) or a break extends continuously outward from the inner recess (7), the inner periphery (8) of the inner recess (7) of the flange plate (6) can be reduced by narrowing the slot (9) or the break, and clamping element is provided with which the flange plate (6) can be mounted through reduction of the inner periphery (8) to an outside of the housing (2) of the plug connector (1), and the flange plate (6) comprises a polygonal flange or square flange having corner regions (6a) with openings or perforations arranged parallel to the inner recess (7) for attachment elements or screws (12) and the slot (9) or the break is arranged in a corner region (6a) without an attachment perforation or adjacent to an attachment perforation (13) at a position that has a greater radial dimension than a middle between two corner regions (6a) of the flange plate (6). 2. Plug connector according to claim 1, wherein the flange plate (6) attaches with a non-positive fit to and is mounted detachably on the outside of the housing (2) of the plug connector (1) in the position of use. 3. Device according to claim 1, wherein the slot (9) extends in a radial direction relative to the approximately circular inner recess (7) which is approximately circular or to the inner periphery (8) of the flange plate (6) which is approximately circular and the clamping screw (10) is arranged parallel to a tangent to the inner periphery (8) and extends through the slot (9). 4. Device according to claim 1, wherein the inner recess (7) exceeds the outer contours of the housing (2) of the plug connector (1) in a region of greater diameter located on the plug connector (1) and adjacent to the position of use and holds an adapter ring (16) similarly having a slot (15) or a break in a position of use in the inner periphery (8), wherein the adapter ring is formed as an elastic ring and contacts, in the position of use, in an axial direction at least one stop (17) in the inner recess (7) of the flange plate (6). 5. Plug connector according to claim 1, wherein for changing a width or dimension of the slot (9) or the break, the clamping element comprises at least one adjustment or clamping screw (10) that is oriented transverse or perpendicular to a profile of the slot (9) or the break and that is arranged adjustable outside of the inner periphery (8) and outside of the inner recess (7) having the inner periphery (8) in the flange plate (6). 6. Device according to claim 5, wherein the clamping screw (10) is arranged on one side of the slot (9) in a recess (11) oriented approximately in a peripheral direction of the inner periphery (8) and passes through or bridges the slot (9) and engages in a mating thread on the other side of the slot (9). 7. Plug connector according to claim 1, wherein for sealing the flange plate (6) relative to the housing plate (4) or an outside of the housing (2) of the plug connector (1) there is a seal (19) that engages at least partially in the inner recess (7) and the inner periphery (8) of the flange plate (6) and that has, in a region of the inner recess (7), an axial annular projection (20) or a widened section that fits in the inner recess (7) or covers this at least across a portion of the axial dimension or up to an adapter ring arranged in the inner recess opening (7). 8. Plug connector according to claim 7, wherein the seal (19) of the flange plate (6) engages in the flange plate in the axial direction at least approximately up to a center of the inner recess (7) of the flange plate (6) and at least partially or completely covers the slot (9) or break and the surface or contact surface of the flange plate (6) extending in the radial direction to the slot or break. 9. Plug connector (1) comprising a housing (2) that is arranged in a position of use in or at an opening (3) in a plate (4) or passes through the opening and contains wires or braids of a cable (5) and electrical contacts, the plug connector (1) is mountable in a front-plate assembly or in a back-plate assembly, in a region of the opening (3) of the plate (4) by a flange (6), and the flange (6) is formed as a flange plate that is positionable at a later time on an outside of the housing (2) of the plug connector (1), and includes an inner recess (7) with an inner periphery (8) for gripping around the housing (2) of the plug connector (1), the flange plate (6) has a one-part construction and a slot (9) or a break extends continuously outward from the inner recess (7), the inner periphery (8) of the inner recess (7) of the flange plate (6) can be reduced by narrowing the slot (9) or the break, and clamping element is provided with which the flange plate (6) can be mounted through reduction of the inner periphery (8) to an outside of the housing (2) of the plug connector (1), the inner recess (7) exceeds the outer contours of the housing (2) of the plug connector (1) in a region of greater diameter located on the plug connector (1) and adjacent to the position of use and holds an adapter ring (16) similarly having a slot (15) or a break in a position of use in the inner periphery (8), wherein the adapter ring is formed as an elastic ring and contacts, in the position of use, in an axial direction at least one stop (17) in the inner recess (7) of the flange plate (6), and undercut (18) is provided whose distance from the stop (17) is equal to or greater than an axial thickness of the adapter ring (16), the undercut is arranged parallel to the stop (17) arranged on or in the inner opening of the flange plate, and a width of the slot (15) or break of the unloaded adapter ring (16) is dimensioned so that it fits with a reduced slot (15) or with a reduced break over the undercut (18) and can be inserted in the axial direction up to the stop (17).