Abstract: The invention relates to a device for detachably fastening a current conductor (10) to a current transformer housing (12), comprising a fastening element (18), which is fastened to a retaining element (16) arranged on the current transformer housing (12) and, when the current conductor (10) is fastened to the current transformer housing (12), rests at least partially on the surface of the current conductor (10). The invention is characterized in that the fastening element (18) is mounted pivotally on the retaining element (16).