Patent ID: 7318755

Claim:
A plug-in connection device comprising: a first part including a first insert and a positioning element; and a second part including a second insert, the second part being detachably connectable to the first part, wherein: the first part and the first insert are one of either a plug part and a plug insert or a socket part and a socket insert, and the second part and the second insert are the other of the plug part and the plug insert or the socket part and the socket insert, the first insert is configured for plug coding and includes electrical connection devices that cannot be rotated relative to the first insert, and can be inserted into the first part so as to be rotationally fixed in one of a number of rotational positions relative to the first part, engaging and counter engaging elements that can engage in various rotational positions are formed at mutually assigned ends of the first insert and of the positioning element, and the positioning element is insertable in the interior of the first part in a predetermined insertion position.