When two dissimilar insulating materials are used, as for example in an aluminum busbar with polypropylene (PP) insulation and a round aluminum or copper conductor with polyvinyl chloride (PVC) or silicone insulation, it is currently not possible to encapsulate the connection, since no material for encapsulating and bonding to the insulation is known that is suitable for both PP and PVC.

Attempts to encapsulate a silicone-insulated cable to prevent the intrusion of water or other media have shown that the resulting jacket is not durably tight.

U.S. Pat. No. 5,821,461 A describes a sealing device for a splice between a PU-insulated cable and a neoprene-insulated cable, in which a neoprene packing gland is formed on the neoprene insulation and then a large-area urethane sheath is molded over the gland and the splice.

German Patent Application No. DE 10 2014 004 430 A1 discloses self-adhesive synthetic materials to encapsulate flat conductors.

German Patent Application No. DE 692 14 315 T2 discloses using an insulating bushing to seal a cable connector for underwater cables. The cable to be connected here has PE and/or rubber insulation.

German Patent Application No. DE 696 10 400 T2 discloses a cable adapter having an elastic sleeve and with suitable material selected.

Embodiments of the present disclosure provide a device for sealing a connection between an electrical conductor and a contact element insulated with dissimilar materials, in the simplest possible constructive manner.