Plug or coupler socket with strain relief for movable cables - is in two parts with projection on bottom part screwed to corresponding elements inside top part

The cable coupling consists of a bottom part with pins or sleeve contacts and an earthing contact as well as projecting end. A tugging strain relief device is at one end. Its top part is hood-shaped pref. of a soft elastic material, and has on its inner side two opposite ribs holding elements with internal thread, by which the bottom part is fastened to it using screws passing through holes. The bottom part(8) projecting end(9) is movable, and the top part (7) has two internal projections (16) facing each other and on whose front and/or rear side the strain relief device (10) is fastened, depending on the cable's(19) cross-section.