Electrical plug connector

An electrical plug connector with an insulating contact carrier that contains a number of electrical contacts in the form of contact pins or contact sockets that are arranged parallel to each other, and which can be inserted axially into a plug connector housing, with the contacts being accessible from the front side of the contact carrier, and with the contacts having connecting elements on a rear side of the contact carrier for connecting with electrical power supply lines, wherein, in the insertion direction, the plug connector housing has a front and a rear housing section that are connected to each other by means of a hinge joint with a swivel axle that is oriented orthogonally to the insertion direction, and can be swiveled from an angled assembly position to a straightened operating position of the plug connector housing, and vice versa, with the contact carrier, the plug connector housing being in operating position, being positionable in the housing sections in such a way that, when in effective position, it engages the front housing section and the rear housing section at least partially and makes contact laterally, at least in sections, with the inside surfaces of the housing sections, thereby reliably preventing the swiveling of the housing parts.