An electrical connector (0a, 0b) with at least one plug or one jack for a signal routing conductor, comprising a housing having an interior (1a, 1b) and an exterior housing part (2a, 2b) separable from each other and also an isolation body received in the interior of the interior housing part (1a, 1b) for at least a contact element, configured for connection to at least one mirror-inverted contact element of a mating connector (0a, 0b), wherein - the exterior housing part (2a, 2b) has ∘ a rotational symmetrical geometry with respect to its middle length axis on the interior wall, ∘ an inner lip (18a, 18b), and ∘ a portion (6a, 6b) for receiving the inner housing part (1a, 1b), - the interior housing part (1a, 1b) ∘ has at least one geometry (4a, 4b) for receiving and fixing the isolation body and an encoding formation configured to and designed to correspond with at least one mirror-inverted encoding formation of a mating connector, o is completely comprised by the exterior housing part (2a, 2b), and ∘ is inserted into the exterior housing part (2a, 2b) and is placed facing the electrical conductor behind the inner lip (18a, 18b) of the exterior housing part (2a, 2b), and - the exterior housing part (2a, 2b) and the interior housing part (1a, 1b) are electrically conducting and rotationally preventive inserted, the exterior housing part (2a, 2b) is produced of stainless steel or a superalloy, the at least one rotational symmetrical geometry of the exterior housing part (2a, 2b) is a protrusion or a recess incorporated along the inner circumferential of the exterior housing part (2a, 2b), and after assembling the connector with the mating connector of the inner housing part (1a, 1b), the inner housing part (1a, 1b) is positioned protected and behind a lateral oriented plane perpendicular to the middle length axis in the interior housing part (2a, 2b), facing the respective electrical conductor, and only the exterior housing part (2a, 2b) is exposed to harmful environmental impacts, characterized in that the inner housing part (1a, 1b) has a higher electrical conductivity than the exterior housing part (2a, 2b), and the geometries of the inner housing parts (1a, 1b) have lugs (9a, 9b) and/or pockets for fixing and/or aligning the isolation body or spring elements, for connecting the earth wire to the inner housing part (1a, 1b). - the exterior housing part (2a, 2b) has ∘ a rotational symmetrical geometry with respect to its middle length axis on the interior wall, ∘ an inner lip (18a, 18b), and ∘ a portion (6a, 6b) for receiving the inner housing part (1a, 1b), ∘ a rotational symmetrical geometry with respect to its middle length axis on the interior wall, ∘ an inner lip (18a, 18b), and ∘ a portion (6a, 6b) for receiving the inner housing part (1a, 1b), - the interior housing part (1a, 1b) ∘ has at least one geometry (4a, 4b) for receiving and fixing the isolation body and an encoding formation configured to and designed to correspond with at least one mirror-inverted encoding formation of a mating connector, o is completely comprised by the exterior housing part (2a, 2b), and ∘ is inserted into the exterior housing part (2a, 2b) and is placed facing the electrical conductor behind the inner lip (18a, 18b) of the exterior housing part (2a, 2b), and ∘ has at least one geometry (4a, 4b) for receiving and fixing the isolation body and an encoding formation configured to and designed to correspond with at least one mirror-inverted encoding formation of a mating connector, o is completely comprised by the exterior housing part (2a, 2b), and ∘ is inserted into the exterior housing part (2a, 2b) and is placed facing the electrical conductor behind the inner lip (18a, 18b) of the exterior housing part (2a, 2b), and - the exterior housing part (2a, 2b) and the interior housing part (1a, 1b) are electrically conducting and rotationally preventive inserted, the exterior housing part (2a, 2b) is produced of stainless steel or a superalloy, the at least one rotational symmetrical geometry of the exterior housing part (2a, 2b) is a protrusion or a recess incorporated along the inner circumferential of the exterior housing part (2a, 2b), and after assembling the connector with the mating connector of the inner housing part (1a, 1b), the inner housing part (1a, 1b) is positioned protected and behind a lateral oriented plane perpendicular to the middle length axis in the interior housing part (2a, 2b), facing the respective electrical conductor, and only the exterior housing part (2a, 2b) is exposed to harmful environmental impacts,