Power control apparatus

A power control apparatus includes a busbar unit which supports a plurality of busbars connected to a plurality of semiconductor modules. The busbar includes a first plate shaped portion and a second plate shaped portion. The first plate shaped portion is adjacent to a cooling device in a posture facing an internal passage of the cooling device in the plate thickness direction. The second plate shaped portion is placed in a posture in which a plate thickness direction thereof intersects with a plate thickness direction of the first plate shaped portion. The second plate shaped portion has outer surfaces including a side surface having a narrower width corresponding to a plate thickness. The second plate shaped portion is placed in a posture in which the side surface faces the semiconductor module.