Abstract: A plug-in connection comprises a plug-in connector (1) and a mating plug-in connector that can be plugged together with the latter. The plug-in connector (1) has a housing (2) into which an electrical conductor (3) is inserted. The electrical conductor (3) is electrically contacted with a contact partner (4) likewise arranged in the housing (2) by means of their surfaces coming to rest on each other. The contact partner (4) is contacted via its circumferential end face (5) with a contact partner of the mating plug-in connector in such a way that the end faces come to rest on each other. The plugging-together is effected and supported by a screw (6). The screw includes insulation (e.g., insulating element (12) or a coating) such that the screw (6) does not touch voltage-carrying parts such as the electrical conductor (3) and/or the contact partner (4).

Abstract: A safety element (10) for an electrical connector (100), wherein the safety element (10) is designed such that it is electrically insulating below a limit temperature (TLimit), and wherein the safety element (10) is designed such that it is electrically conductive above the limit temperature (TLimit)