In a plug for an electrical plug connection, having a contact carrier joined together of an upper part and a lower part, the upper part and the lower part having plug chambers that are aligned with one another, and the plug chambers of the lower part having electrical contacts for contacting by electrical contacts of a mating connector that reach through the plug chambers of the upper part, having a matting seal for sealing the plug chambers and having a pressure plate pressing on the matting seal, it is provided that the matting seal is situated between the upper and lower parts of the contact carrier, and the pressure plate is integrated into the upper part.