A contact device, comprising: a first contact; a second contact that is movable relative to the first contact and is brought into contact with or separated from the first contact; a first body part including the first contact; a second body part including the second contact; and a yoke arranged adjacent to at least one of the first body part or the second body part, wherein at least a part of the yoke is arranged along magnetic flux generated by a current flowing through one body part of the first body part and the second body part that is adjacent to the yoke, in a region where the first body part and the second body part overlap each other when viewed along an axis in which the first contact and the second contact move relative to each other while the first contact and the second contact are in contact with each other, wherein the first contact includes two first contacts, the second contact includes two second contacts, the first body part includes two first body parts, and the second body part includes one second body part, one second contact of the two second contacts is brought into contact with and is separated from one first contact of the two first contacts, and the other second contact of the two second contacts is brought into contact with and is separated from the other first contact of the two first contacts, the two first contacts are arranged side by side in an axis intersecting an axis in which the first contacts and the second contacts, which are brought into contact with and are separated from each other, move relative to each other, one of the two first body parts has the one first contact, and the other of the two first body parts has the other first contact, and the one second body part includes the two second contacts, characterized in that the yoke includes a section that overlaps with an entire area of a contact region in which the first contact and the second contact make contact with each other when viewed along the axis in which the first contact and the second contact move relative to each other. a first contact; a second contact that is movable relative to the first contact and is brought into contact with or separated from the first contact; a first body part including the first contact; a second body part including the second contact; and a yoke arranged adjacent to at least one of the first body part or the second body part, wherein at least a part of the yoke is arranged along magnetic flux generated by a current flowing through one body part of the first body part and the second body part that is adjacent to the yoke, in a region where the first body part and the second body part overlap each other when viewed along an axis in which the first contact and the second contact move relative to each other while the first contact and the second contact are in contact with each other, wherein the first contact includes two first contacts, the second contact includes two second contacts, the first body part includes two first body parts, and the second body part includes one second body part, one second contact of the two second contacts is brought into contact with and is separated from one first contact of the two first contacts, and the other second contact of the two second contacts is brought into contact with and is separated from the other first contact of the two first contacts, the two first contacts are arranged side by side in an axis intersecting an axis in which the first contacts and the second contacts, which are brought into contact with and are separated from each other, move relative to each other, one of the two first body parts has the one first contact, and the other of the two first body parts has the other first contact, and the one second body part includes the two second contacts, characterized in that the yoke includes a section that overlaps with an entire area of a contact region in which the first contact and the second contact make contact with each other when viewed along the axis in which the first contact and the second contact move relative to each other.