Switch device

A switch device, comprising:

• a housing that includes
• a central fixed contact and a first peripheral fixed contact that are at a central portion of a bottom surface of a recessed portion of the housing, and
• a second peripheral fixed contact that is at a peripheral portion of the bottom surface of the recessed portion;
• a first movable contact that is disposed on an upper side of the central portion of the bottom surface of the recessed portion and is in contact with the first peripheral fixed contact;
• a second movable contact that is disposed on an upper side of the first movable contact and is in contact with the first movable contact and the second peripheral fixed contact;
• and
• a first stem that is disposed on an upper side of the second movable contact and is configured to press the first movable contact toward the central fixed contact, wherein
• in response to pressing against the first stem, the first stem presses the first movable contact, and the first movable contact separates from the second movable contact and becomes inverted, thereby contacting the central fixed contact.