An electrical connector 1 is provided, comprising a first connecting part 10 and a second connecting part 20 having respective front ends 17, 27 adapted to mechanically couple together in a coupling state, wherein the first and the second connecting parts are adapted to be brought into the coupling state from a lateral opening provided on the first connecting part 10. As a consequence, the two connecting parts can be easily connected together without any backward movements. Moreover, the first and second connecting parts 10, 20 may be fixed by means of a coupling bolt 34 that has a tip 36 with a conical shape adapted to match a circular dove profile of a coupling element 40 of the second connecting part so that when tightening the coupling bolt 34 against the coupling element 40, the first and the second connecting parts 10, 20 are pushed against each other, thereby, improving the mechanical and electrical contact between the two connecting parts 10, 20 of the connector.