A switch unit includes a wiring board, a spacer, a movable contact element, a pressing element, and a protective sheet. A first stationary contact element and a second stationary contact element having rectangular shapes are provided on an upper surface of the wiring board. A contact section includes the movable contact element, the first stationary contact element, and the second stationary contact element. The movable contact element is mounted on a portion of the upper surface of the wiring board that is exposed from an inside of an opening of the spacer so that an outer edge of the movable contacts the second stationary contact element. The first stationary contact element continuously extends from a region of the wiring board facing a movable contact portion of the movable contact element to a region of the wiring board outside a region of the wiring board onto which the movable contact element is projected.