A receptacle connector having a base part, which has at least one insulation displacement contact for making electrical contact with an electrical conductor, and having a top part, which has at least one conductor infeed opening for in each case one electrical conductor with which contact is to be made, and at least one contact accommodation opening, which in each case opens out into an associated conductor infeed opening, for accommodating an insulation displacement contact of the base part when the top part is fitted onto the base part. The receptacle connector is designed for fitting into a housing. For this purpose, the base part and/or the top part have sealing lips with a contour which is matched to an associated housing wall in order to fit the base part and/or the top part into a housing wall in a sealed manner.