A bus bar includes a bus bar body and a spacer provided on the bus bar body, the spacer being an insulator. The bus bar body includes a through hole portion that allows a part of a fixing member for fixing the bus bar body to be inserted therethrough. The spacer includes a head portion and a body portion extending therefrom. When the spacer is provided on the bus bar body, the head portion covers at least part of a peripheral edge region of an end opening of the through hole and the body portion covers an inner peripheral surface of the through hole portion. An outer peripheral surface of the body portion of the spacer is fixedly adhered to the inner peripheral surface of the through hole portion so that resistance occurs when the spacer moves toward the head portion side relative to the bus bar body.