Device for the sealed passing-through of an elongate part

A device for the sealed closing of an opening for one or more elongate parts to pass through, the device comprising:

• a sealing and/or clamping element consisting of at least two interacting first and second parts which are axially displaceable relative to one another;
• a delimiting contour having a support contour at which a first end region of the second part is radially supported to prevent radial deformation of the first end region of the second part;
• and
• a pressure contour acting axially onto the sealing and/or clamping element, the pressure contour disposed radially outward of the second parts,
• wherein a first axial displacement of the pressure contour and an axial displacement of the at least one second part relative to the at least one first part causes a first change in geometry only of the at least one first part transversely to the displacement direction,
• wherein the second part is retained in the support contour over approximately one third of a length of the second part, and
• wherein a further axial displacement of the pressure contour causes a further change in geometry of both of the at least two interacting first and second parts of the sealing and/or clamping element transversely to the displacement direction.