Abstract: Multi-terminal connector assembly comprising a housing made of plastic, a first row of terminals insertable side-by-side into the housing for the introduction and connection of lead wires and a second row of terminal insertable side-by-side into the housing. The second row of terminals is arranged in a stair-like manner above and behind the row in the direction of insertion. Terminal pins are provided for the terminals, projecting from the base of the housing in two rows offset from each other in the insertion direction. The housing having a base parallel to the rows of terminals and to the insertion direction. The housing is designed as a single piece whereby the terminals of the first row can be introduced into the housing from the front in the insertion direction and wherein the terminals of the second row can be introduced into the housing from the rear in the direction opposite to the insertion direction.