A contact carrier can be inserted into the contact carrier and removed again by a slight elastic deformation of a holding element, a detent engagement action of a detent of the holding element with a further detent of a main body of the contact carrier can be released. A particularly simple mounting and dismounting of a contact element in the contact carrier is realized. The contact carrier is constructed such that the holding element and the contact element can be inserted into the main body from an attachment side which is situated opposite a plug-in side.