Cable plug connector with offset coupling region for the protective conductor

A cable plug connector configured for establishing an accurately fitting mechanically lockable plug connection with a panel connector matched to the cable plug connector as a counterpart, the cable plug connector comprises:

• a mechanical retaining element that is adapted to be blocked from axial movement in a cable plug connector extraction direction by a retaining element counterpart on the panel connector side as part of a first part of a locking mechanism operable by rotation of the cable plug connector in a screwing-in direction with the cable plug connector at least partially inserted into the panel connector,
• a latch slider, that is adapted to engage, as part of a second part of the locking mechanism, which can be actuated that is actuatable by displacing the latch slider, with a latch connected to the latch slider in a locking element on the panel connector side and thus to block the cable plug connector against rotation in an unscrewing direction, which is directed counter to the screwing-in direction,
• mechanical key elements that cooperate with matched key element counterparts of the panel connector such that the cable plug connector is insertable into the panel connector in only one specific rotational orientation predetermined by the key element counterparts,
• a cable insertion opening for inserting a power cable comprising three individual conductors, comprising an outer conductor, a neutral conductor and protective conductor, and
• an outer conductor contact element, a neutral conductor contact element and a protective conductor contact element, that are adapted to come into contact with a respective contact element counterpart on the panel connector side by establishment of the plug connection, wherein
• the outer conductor contact element is adapted to provide an electrically conductive connection with a conductor end piece of the outer conductor in a first coupling portion,
• the neutral conductor contact element is adapted to provide an electrically conductive connection with a conductor end piece of the neutral conductor in a second coupling portion, and
• the protective conductor contact element is adapted to provide an electrically conductive connection with a conductor end piece of the protective conductor in a third coupling portion,
• wherein the electrically conductive connections are each provided within the respective coupling portion via the respective conductor end piece of the individual conductor being contacted at at least one contact point and thereby fixed,
• an end of the third coupling portion that acts as an earthing coupling portion on a cable insertion opening side is arranged at a shorter distance from the cable insertion opening in an insertion direction of the power cable into the cable insertion opening than an end of the first coupling portion on the cable insertion opening side and an end of the second coupling portion on the cable insertion opening side.