Provided a holding frame for a plug connector with a good heat resistance and a high mechanical robustness and to enable a protective earthing during installation in a metallic plug connector housing, yet at the same time guarantee a convenient serviceability, in particular during replacement of individual modules. To achieve this aim, the manufacture of the holding frame at least partially from resilient sheet metal is proposed. Due to the resilient properties of the sheet metal, it is possible to insert or remove modules with very little effort. The sheet metal can be bent and/or folded in certain regions and can thereby be strengthened in targeted regions, in order to achieve a particularly advantageous combination of holding and actuating forces.