A busbar for being accommodated in a case includes a metal plate, a regulating portion and a connected portion. The regulating portion is provided at a part of an edge of the metal plate. The regulating portion has a burr extending in a direction opposite to an inserting direction in which the busbar is inserted into the case. The regulating portion is adapted to come in contact with a part of an inner wall of the case so as to regulate a position of the busbar. The connected portion is provided at a part of the edge of the metal plate. The connected portion has a burr extending in the inserting direction. The connected portion is adapted to be disposed so as not to contact the inner wall of the case.