An electrical connector for receiving at least one electrical conductor (14, 14'), the connector comprising: a housing (16, 26); a bus bar configured to be connected to a plurality of clamps and arranged inside the housing (16, 26); and at least one clamp arranged inside the housing (16, 26); wherein the at least one clamp comprises a spring arm moveable relative to the bus bar along a first axis between a connecting position and a disconnecting position; wherein the spring arm cooperates with the bus bar to secure an electrical conductor (14, 14') to the bus bar when the spring arm is in the connecting position; wherein the spring arm is positioned at a predetermined distance away from the bus bar when the spring arm is in the disconnecting position, thereby allowing an end section of an electrical conductor (14, 14') to be inserted through an opening of the housing (16, 26) into a gap between the spring arm and the bus bar or to be removed therefrom; the connector further comprising at least one slider extending into the housing (16, 26) and being moveable relative to the housing (16, 26) along a second axis between a closed position and an open position; wherein the at least one slider includes two opposite sliding guides cooperating with a convex support surface of the spring arm such that a movement of the slider translates into a movement of the spring arm along the first axis; wherein the sliding guides are formed at two opposite side arms (76, 76') of the slider, said side arms (76, 76') extending parallel to the second axis, characterized in that the spring arm comprises two opposite lateral tongues (84, 84') bent away from the free end of the spring arm, thereby each tongue (84, 84') forming the convex support surface for cooperation with an associated sliding guide of the slider. a housing (16, 26); a bus bar configured to be connected to a plurality of clamps and arranged inside the housing (16, 26); and at least one clamp arranged inside the housing (16, 26); wherein the at least one clamp comprises a spring arm moveable relative to the bus bar along a first axis between a connecting position and a disconnecting position; wherein the spring arm cooperates with the bus bar to secure an electrical conductor (14, 14') to the bus bar when the spring arm is in the connecting position; wherein the spring arm is positioned at a predetermined distance away from the bus bar when the spring arm is in the disconnecting position, thereby allowing an end section of an electrical conductor (14, 14') to be inserted through an opening of the housing (16, 26) into a gap between the spring arm and the bus bar or to be removed therefrom; the connector further comprising at least one slider extending into the housing (16, 26) and being moveable relative to the housing (16, 26) along a second axis between a closed position and an open position; wherein the at least one slider includes two opposite sliding guides cooperating with a convex support surface of the spring arm such that a movement of the slider translates into a movement of the spring arm along the first axis; wherein the sliding guides are formed at two opposite side arms (76, 76') of the slider, said side arms (76, 76') extending parallel to the second axis, characterized in that the spring arm comprises two opposite lateral tongues (84, 84') bent away from the free end of the spring arm, thereby each tongue (84, 84') forming the convex support surface for cooperation with an associated sliding guide of the slider.