Connection sleeve suitable for connecting 3-core plastic cables with three 1-core plastic cables. Enables the connection of cables with copper wire shields of different cross-sections and conductor materials, even with different cable designs in terms of conductive layer (graphitized, removable or peelable). With screw connectors. Areas of application: Indoors, outdoors, soil, water, installation ducts. Properties: Safe field control through permanently elastic silicone field control elements, both for Cu and Al conductors for all cables with copper wire or tape shields, large line and cable cross-section range, quick, easy and safe installation, immediately ready for use, multi-area application through integrated screw connector. Scope of delivery: Thick-walled heat-shrink insulation tubing, thick-walled heat-shrink outer tubing with thermoplastic adhesive, silicone field control element, copper fabric tape, field-controlling blue filling tape, innovative screw connectors with conductive sheath, screw connectors for copper wire shield, small assembly materials, assembly instructions.