SWITCH DEVICE

To provide a switch that supports a high DC voltage.SOLUTION: A switch device includes a plurality of contacts 2 that can be opened and closed, a main switch 3 that can keep the contact 2 open or closed, a moving member 4 that has a state of being in contact with the main switch 3 and a state of not being in contact with the main switch 3 to move the main switch 3 to a closed position or an open position, and a sub switch 5 that urges the main switch 3 to the closed position or the open position via the moving member 4, and when the sub switch 5 is in the neutral state between the on position and the off position, a gap C is formed between the moving member 4 and the main switch 3, and when the main switch 3 keeps the contact 2 in the closed state, and the sub switch 5 approaches the off position, the moving member 4 starts contact with the main switch 3, and the main switch 3 opens the contact 2.SELECTED DRAWING: Figure 1 【課題】直流の高電圧に対応したスイッチを提供する。【解決手段】スイッチ装置は、開閉可能な複数の接点２と、接点２を開状態又は閉状態に維持可能な主スイッチ３と、主スイッチ３に接触した状態及び接触しない状態を有していて主スイッチ３を閉位置又は開位置に移動させる移動部材４と、移動部材４を介して主スイッチ３を閉位置又は開位置へ付勢する副スイッチ５と、を備え、副スイッチ５がオン位置とオフ位置の間の中立状態にあるときは、移動部材４と主スイッチ３の間に隙間Ｃが形成され、主スイッチ３は接点２を閉状態に維持し、副スイッチ５がオフ位置に接近すると、移動部材４が主スイッチ３との接触を開始し、主スイッチ３が接点２を開く。【選択図】図１