Connector made of an electrically insulating material that will electrically connect a main conductor and a secondary conductor, the connector comprising a connection device that comprises: • a central section extending along a longitudinal direction; • a main part and a secondary part defining a main channel and a secondary channel respectively, parallel to the longitudinal direction and separated by the central section; the connector comprises electrical connection means made of an electrically conducting material, configured to electrically connect the main conductor and the secondary conductor as soon as they are inserted in the main channel and in the secondary channel respectively the secondary channel comprises a stop called the secondary stop that will prevent a secondary conductor from passing through the secondary channel completely, wherein the electrical connection means comprise a main contact section and a secondary contact section emerging in the main channel and in the secondary channel respectively, and connected by an intermediate section, characterised in that: the secondary stop separates the volume of the secondary channel into a first volume and a second volume, wherein the secondary contact section emerges only in one or the other of the first and second volumes. • a central section extending along a longitudinal direction; • a main part and a secondary part defining a main channel and a secondary channel respectively, parallel to the longitudinal direction and separated by the central section; the connector comprises electrical connection means made of an electrically conducting material, configured to electrically connect the main conductor and the secondary conductor as soon as they are inserted in the main channel and in the secondary channel respectively the secondary channel comprises a stop called the secondary stop that will prevent a secondary conductor from passing through the secondary channel completely, wherein the electrical connection means comprise a main contact section and a secondary contact section emerging in the main channel and in the secondary channel respectively, and connected by an intermediate section, characterised in that: the secondary stop separates the volume of the secondary channel into a first volume and a second volume, wherein the secondary contact section emerges only in one or the other of the first and second volumes. the connector comprises electrical connection means made of an electrically conducting material, configured to electrically connect the main conductor and the secondary conductor as soon as they are inserted in the main channel and in the secondary channel respectively the secondary channel comprises a stop called the secondary stop that will prevent a secondary conductor from passing through the secondary channel completely, wherein the electrical connection means comprise a main contact section and a secondary contact section emerging in the main channel and in the secondary channel respectively, and connected by an intermediate section, characterised in that: the secondary stop separates the volume of the secondary channel into a first volume and a second volume, wherein the secondary contact section emerges only in one or the other of the first and second volumes.