An electrical connector (10; 50; 148, 150) having a plurality of insulation displacement contacts adapted to make electrical connection with respective insulated conductors (20, 22, 24; 52, 54, 56) in the form of a cable (26; 58) or an electrically insulated connecting wire, the connector comprising: (a) a housing (12; 60) having opposed side walls and a floor, (b) a movable press (14; 158) mounted to the opposed side walls, (c) a passageway (16; 69; 160) between the movable press and the floor for receiving each insulated conductor (20, 22, 24; 52, 54, 56) along a longitudinal direction of the passageway (16; 69; 160), (d) cutting edges (28, 30, 32; 72; 154) of respective insulation displacement contacts for cutting into a respective insulated conductor (20, 22, 24; 52, 54, 56) to make electrical connection to each conductor (20, 22, 24; 52, 54, 56) when received in the passageway, each cutting edge (28, 30, 32; 72; 154) extending upwardly through the floor, and (e) the movable press (14; 158) having a curved pressing surface and being pivotally movable about a pivot point, the pivotal movement of the movable press (14; 158) being between a first position where it allows access of each insulated conductor (20, 22, 24; 52, 54, 56) into the passageway (16; 69; 160) and a second position where it presses against each insulated conductor (20, 22, 24; 52, 54, 56) and forces the insulated conductor (20, 22, 24; 52, 54, 56) against the respective cutting edge (28, 30, 32; 72; 154) whereby each cutting edge (28, 30, 32; 72; 154) cuts into its respective insulated conductor (20, 22, 24; 52, 54, 56) and makes electrical connection to each conductor (20, 22, 24; 52, 54, 56) longitudinally with reference to the direction of each conductor (20, 22, 24; 52, 54, 56) in the passageway (16; 69; 160), characterised in that the cutting edges (28; 30; 32; 72) are formed on blades which are spaced-apart in a lateral direction of the passageway (16; 69; 160), each cutting edge (28; 30; 32; 72) being longitudinally aligned with the passageway (16; 69; 160), and in that the curved pressing surface has a plurality of elongated slots (36, 38, 40; 71) aligned longitudinally with the cutting edges (28, 30, 32; 72) so that each slot (36, 38, 40; 71) receives therethrough a respective cutting edge (28, 30, 32; 72; 154) as the insulated conductors (20, 22, 24, 52, 54, 56) are being forced by the pressing surface against a respective cutting edge (28, 30, 32; 72; 154). (a) a housing (12; 60) having opposed side walls and a floor, (b) a movable press (14; 158) mounted to the opposed side walls, (c) a passageway (16; 69; 160) between the movable press and the floor for receiving each insulated conductor (20, 22, 24; 52, 54, 56) along a longitudinal direction of the passageway (16; 69; 160), (d) cutting edges (28, 30, 32; 72; 154) of respective insulation displacement contacts for cutting into a respective insulated conductor (20, 22, 24; 52, 54, 56) to make electrical connection to each conductor (20, 22, 24; 52, 54, 56) when received in the passageway, each cutting edge (28, 30, 32; 72; 154) extending upwardly through the floor, and (e) the movable press (14; 158) having a curved pressing surface and being pivotally movable about a pivot point, the pivotal movement of the movable press (14; 158) being between a first position where it allows access of each insulated conductor (20, 22, 24; 52, 54, 56) into the passageway (16; 69; 160) and a second position where it presses against each insulated conductor (20, 22, 24; 52, 54, 56) and forces the insulated conductor (20, 22, 24; 52, 54, 56) against the respective cutting edge (28, 30, 32; 72; 154) whereby each cutting edge (28, 30, 32; 72; 154) cuts into its respective insulated conductor (20, 22, 24; 52, 54, 56) and makes electrical connection to each conductor (20, 22, 24; 52, 54, 56) longitudinally with reference to the direction of each conductor (20, 22, 24; 52, 54, 56) in the passageway (16; 69; 160), characterised in that the cutting edges (28; 30; 32; 72) are formed on blades which are spaced-apart in a lateral direction of the passageway (16; 69; 160), each cutting edge (28; 30; 32; 72) being longitudinally aligned with the passageway (16; 69; 160), and in that the curved pressing surface has a plurality of elongated slots (36, 38, 40; 71) aligned longitudinally with the cutting edges (28, 30, 32; 72) so that each slot (36, 38, 40; 71) receives therethrough a respective cutting edge (28, 30, 32; 72; 154) as the insulated conductors (20, 22, 24, 52, 54, 56) are being forced by the pressing surface against a respective cutting edge (28, 30, 32; 72; 154).