Switch device comprising two switches which share a common conductor

A switch device, comprising:

• a first switch including a first blade and a second blade, wherein the first switch is configured to be opened or closed based on contact or non-contact between the first blade and the second blade;
• a second switch including a third blade and a fourth blade, wherein the second switch is configured to be opened and closed based on contact or non-contact between the third blade and the fourth blade;
• a housing that accommodates the first switch and the second switch therein;
• and
• an actuator disposed in the housing and actuated to selectively open and close the first switch and the second switch, wherein the second blade is connected to a first conductor that passes through the housing, wherein the fourth blade is connected to a second conductor that passes through the housing, wherein all of a common conductor, the first conductor, the second conductor, the first switch, and the second switch are fixedly supported by a support structure disposed in the housing, wherein the support structure includes support blocks that project from the bottom face of the housing, and slots defined in the support blocks, wherein at least one of the first blade to the fourth blade is inserted into at least one slot and is fixed to at least one support block, wherein the support structure has a conductor-receiving groove defined in the support block, wherein at least one of the common conductor, the first conductor, or the second conductor that passes through the housing is received in the conductor-receiving groove, wherein at least one of the first to fourth blades includes a blade body, wherein the blade body is inserted into the slot and is fixed to the support block, and at least a portion of the blade body is exposed out of the support block, wherein a conductor-receiving portion extends from the blade body, wherein the conductor-receiving portion receives a corresponding conductor, wherein the corresponding conductor passes through the conductor-receiving groove when the blade body is fixed to the support block, wherein the corresponding conductor is selected from the common conductor, the first conductor, and the second conductor, wherein the blade body includes a non-interference groove defined therein, wherein the non-interference groove receives a corresponding conductor and prevents the conductor from interfering with the blade body, and wherein the corresponding conductor is received in the conductor-receiving groove and is selected from the common conductor, the first conductor, and the second conductor.