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- sfppscy72557 2012-03-28 00:00:00
- 2個(gè)常開(kāi)觸點(diǎn)，2個(gè)常閉觸點(diǎn)
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- 好看罵 2017-09-10 04:30:54
- 2開(kāi)2閉是說(shuō)該型號(hào)電磁繼電器具有2常開(kāi)觸點(diǎn)，2常閉觸點(diǎn)。 繼電器在線(xiàn)圈沒(méi)有得電時(shí)，斷開(kāi)狀態(tài)的觸點(diǎn)是常開(kāi)觸點(diǎn)，閉合狀態(tài)的觸點(diǎn)是常閉觸點(diǎn)。常用NO表示常開(kāi)觸點(diǎn)，與之對(duì)應(yīng)的NC為常閉觸點(diǎn) N=NORMAL：常態(tài)的 O=OPEN：打開(kāi)的 C=CLOSE：關(guān)閉的
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