Multipole connector for the electrical interconnection of electrical cables comprising: - a containment body made of an electrically insulating material able to house a plurality of terminals made of an electrically conductive material connectable to a corresponding plurality of electrical cables , said containment body comprising a plurality of housing cavities able to insert said terminals and being coupleable to the containment body of another connector ; - at least a closing element made of an electrically insulating material able to close said containment body after said terminals have been inserted; wherein: - said housing cavities are communicating with each other; - at least one of said containment body and said closing element comprises at least a through hole able to communicate with at least one of said housing cavities for the introduction of at least a sealing substance (S) for sealing said housing cavities ; - said containment body comprises a central axis (A), a first open axial extremity , a second open axial extremity and at least a median plane (B) positioned between said first open axial extremity and said second open axial extremity and on which is formed a transversal base having passage openings , said terminals being insertable into said housing cavities through said first open axial extremity and being positionable in an assembly configuration wherein they pass through said passage openings ; and - said containment body comprises at least a housing seat at least partially hollow able to house at least partially said closing element ; characterized by the fact that said closing element comprises at least a transversal partition for closing said first open axial extremity and at least an elongated body which is insertable into said housing seat and along which said through hole is formed. - a containment body made of an electrically insulating material able to house a plurality of terminals made of an electrically conductive material connectable to a corresponding plurality of electrical cables , said containment body comprising a plurality of housing cavities able to insert said terminals and being coupleable to the containment body of another connector ; - at least a closing element made of an electrically insulating material able to close said containment body after said terminals have been inserted; - said housing cavities are communicating with each other; - at least one of said containment body and said closing element comprises at least a through hole able to communicate with at least one of said housing cavities for the introduction of at least a sealing substance (S) for sealing said housing cavities ; - said containment body comprises a central axis (A), a first open axial extremity , a second open axial extremity and at least a median plane (B) positioned between said first open axial extremity and said second open axial extremity and on which is formed a transversal base having passage openings , said terminals being insertable into said housing cavities through said first open axial extremity and being positionable in an assembly configuration wherein they pass through said passage openings ; and - said containment body comprises at least a housing seat at least partially hollow able to house at least partially said closing element ; <EOS>