A first switching element and a second switching element are arranged side by side in a first direction. An output bus bar is disposed to extend in the first direction. The first switching element and the second switching element are disposed to be embedded in a molded portion. The output bus bar includes an embedded portion embedded in the molded portion, a first exposed portion exposed from the molded portion on one side of the switching element set in the first direction, and a second exposed portion exposed from the molded portion on another side of the switching element set in the first direction.