A relay includes a fixed terminal, a fixed contact connected to the fixed terminal, a movable contact piece facing the fixed terminal, a movable contact, a drive unit including a coil and an armature operated by electromagnetic force generated from the coil, a card, and a wall disposed between the armature and the card. The movable contact is connected to the movable contact piece and faces the fixed contact. The card is disposed between the drive unit and the movable contact piece, and transmits an operation of the armature to the movable contact piece. The card includes a card body, a contact part, and a protrusion. The card body is disposed between the wall and a movable contact piece. The contact part extends from the card body toward the armature. The protrusion protrudes from the card body toward the wall and is disposed on a side of the contact part.