SWITCH

在儀控的設備中常提到on-off接點DPDT,採購人員或主辦工程師常會買錯,故整理以下資料供參考:

1.SPST = single pole , single throw.
2.SPDT = single pole , double throw.
3.DPST = double pole , single throw.
4.DPDT = double pole , double throw.

詳細如以下圖示: