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An electrical connector comprising one or more housings and a carrier adapted to receive the housing(s). The housing comprises a flexible lance adapted to flex to maintain an electrical contact in the receptacle. The carrier comprises a protrusion. When the lance is in its unlock condition, the lanc

An electrical connector comprising one or more housings and a carrier adapted to receive the housing(s). The housing comprises a flexible lance adapted to flex to maintain an electrical contact in the receptacle. The carrier comprises a protrusion. When the lance is in its unlock condition, the lance cooperates with the protrusion to prevent the housing from reaching the assembled position with respect to the carrier. When the lance is in its lock condition, the lance does not cooperate with the protrusion.

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1. An electrical connector, comprising: a housing defining a row of receptacles each configured to receive a respective electrical contact, wherein said housing comprises a base and a flexible lance for a receptacle, said flexible lance configured to flex with respect to the base between a lock cond

1. An electrical connector, comprising: a housing defining a row of receptacles each configured to receive a respective electrical contact, wherein said housing comprises a base and a flexible lance for a receptacle, said flexible lance configured to flex with respect to the base between a lock condition wherein the flexible lance maintains said electrical contact in the receptacle, and an unlock condition wherein the flexible lance does not maintain said electrical contact in the receptacle; anda carrier configured to receive said housing, wherein said carrier comprises a protrusion, wherein said housing is movable with respect to the carrier between a preassembled position and an assembled position, wherein-the flexible lance contacts the protrusion to prevent the housing from reaching the assembled position with respect to the carrier upon moving the housing with respect to the carrier from a preassembled position toward the assembled position when the flexible lance is in the unlock condition, and wherein the flexible lance does not contact the protrusion upon moving the housing with respect to the carrier from the preassembled position toward the assembled position when the flexible lance is in the lock condition, thereby allowing the housing to reach the assembled position with respect to the carrier, and wherein said carrier further comprises an internal portion split by walls wherein the internal portion has a longitudinal rib. 2. The electrical connector according to claim 1, wherein said receptacle has a first opening adapted to allow access in the receptacle, wherein said carder has a second opening associated with said first opening, wherein is an intermediate position, the flexible lance cooperates with the protrusion and said electrical contact is not connectable with a complementary contact of an associated connector and wherein is the assembled position, said electrical contact is connectable with said complementary contact of the associated connector. 3. The electrical connector according to claim 2, wherein said first and second openings are not facing each other in the intermediate position and wherein said first and second openings are facing each other in the assembled position. 4. The electrical connector according to claim 1, wherein said receptacle has a first opening adapted to allow access in the receptacle and said carrier having a second opening associated with said first opening, wherein in an intermediate position-the flexible lance cooperates with the protrusion and said first and second openings are not facing, whereby said electrical contact is not connectable with a complementary contact of an associated connector and wherein in the assembled position, said first and second openings are facing, whereby said electrical contact is connectable with said complementary contact of the associated connector. 5. The electrical connector according to claim 1, wherein the carrier includes a longitudinal central rib provided to cooperate with a longitudinal central groove of said housing in the assembled position. 6. The electrical connector according to claim 5, wherein said lance is a first flexible lance, wherein said receptacle further has a second flexible lance, and said first flexible lance cooperates with the longitudinal central rib and said second flexible lance cooperates with a longitudinal protrusion of the carrier to support said second flexible lance in the lock condition for the electrical contact in the assembled position. 7. An electrical connector comprising: a housing defining a row of receptacles each configured to receive a respective electrical contact, wherein said housing comprises a base and flexible lance for receptacle, said flexible lance configured to flex with respect to the base between a lock condition wherein the flexible lance maintains said electrical contact in the receptacle, and an unlock condition wherein the flexible lance does not maintain said electrical contact in the receptacle; anda carrier configured to receive said housing wherein said carrier comprises a protrusion, wherein said housing is movable with respect to the carrier between a preassembled position and an assembled position, wherein-the flexible lance contacts the protrusion to prevent the housing from reaching the assembled position with respect to the carrier upon moving the housing with respect to the carrier from a preassembled position toward the assembled position when the flexible lance is in the unlock condition, and wherein the flexible lance does not contact the protrusion upon moving the housing with respect to the carrier from the preassembled position toward the assembled position when the flexible lance is in the lock condition, thereby allowing the housing to reach the assembled position with respect to the carrier, said carrier further comprising a pin configured to support a pivotable lever in rotation serving as a fulcrum for said pivotable lever. 8. The electrical connector according to claim 7, further comprising the pivotable lever comprising an elongated portion, a circular portion and a curved portion. 9. The electrical connector according to claim 7, wherein said pivotable lever contains a circular portion and wherein said circular portion incorporates a protuberance and cavities on both sides of the protuberance which are not protruding from the circular portion. 10. The electrical connector according to claim 7, wherein said receptacle has a first opening adapted to allow access in the receptacle, wherein said carrier has a second opening associated with said first opening, wherein is an intermediate position, the flexible lance cooperates with the protrusion and said electrical contact is not connectable with a complementary contact of an associated connector and wherein is the assembled position, said electrical contact is connectable with said complementary contact of the associated connector. 11. The electrical connector according to claim 10, wherein said first and second openings are not facing each other in the intermediate position and wherein said first and second openings are facing each other in the assembled position. 12. The electrical connector according to claim 7, wherein said receptacle has a first opening adapted to allow access in the receptacle and said carrier having a second opening associated with said first opening, wherein in an intermediate position-the flexible lance cooperates with the protrusion and said first and second openings are not facing, whereby said electrical contact is not connectable with a complementary contact of an associated connector and wherein in the assembled position, said first and second openings are facing, whereby said electrical contact is connectable with said complementary contact of the associated connector. 13. The electrical connector according to claim 7, wherein the carrier includes a longitudinal central rib provided to cooperate with a longitudinal central groove of said housing in the assembled position. 14. The electrical connector according to claim 13, wherein said lance is a first flexible lance, wherein said receptacle further has a second flexible lance, and said first flexible lance cooperates with the longitudinal central rib and said second flexible lance cooperates with a longitudinal protrusion of the carrier to support said second flexible lance in the lock condition for the electrical contact in the assembled position.