繼電(dian)(dian)器具有控(kong)(kong)制(zhi)(zhi)(zhi)系統(tong)(tong)（又稱輸入回(hui)路(lu)）和被控(kong)(kong)制(zhi)(zhi)(zhi)系統(tong)(tong)（又稱輸出回(hui)路(lu)），通(tong)常(chang)(chang)應用于自(zi)動(dong)控(kong)(kong)制(zhi)(zhi)(zhi)電(dian)(dian)路(lu)中(zhong)，它實際(ji)上是(shi)用較(jiao)小的(de)電(dian)(dian)流去(qu)控(kong)(kong)制(zhi)(zhi)(zhi)較(jiao)大電(dian)(dian)流的(de)一種“自(zi)動(dong)開關(guan)”。本產品作(zuo)為四極(ji)(ji)設(she)(she)計，可(ke)用作(zuo)主繼電(dian)(dian)器或輔助(zhu)繼電(dian)(dian)器，針對不同的(de)柵極(ji)(ji)電(dian)(dian)壓，有常(chang)(chang)開和常(chang)(chang)閉兩種可(ke)選。具有隔(ge)離功能的(de)自(zi)動(dong)開關(guan)元(yuan)件(jian)，廣泛應用于遙控(kong)(kong)、遙測(ce)、通(tong)訊、自(zi)動(dong)控(kong)(kong)制(zhi)(zhi)(zhi)、機電(dian)(dian)一體化及電(dian)(dian)力電(dian)(dian)子(zi)設(she)(she)備(bei)中(zhong)，是(shi)最重(zhong)要的(de)控(kong)(kong)制(zhi)(zhi)(zhi)元(yuan)件(jian)之一。

作為控制元件，繼(ji)電器有(you)如下幾種(zhong)作用：

1） 擴大控制(zhi)范(fan)圍：例如，多觸(chu)點繼電(dian)(dian)(dian)(dian)(dian)器(qi)(qi)控制(zhi)信(xin)號(hao)達到某一定值時，可以按(an)觸(chu)點組的(de)(de)不同形式(shi)，同時換接、開(kai)斷、接通多路電(dian)(dian)(dian)(dian)(dian)路。2）放大：靈(ling)敏型繼電(dian)(dian)(dian)(dian)(dian)器(qi)(qi)、中間繼電(dian)(dian)(dian)(dian)(dian)器(qi)(qi)等，用一個很微(wei)小的(de)(de)控制(zhi)量，可以控制(zhi)很大功率的(de)(de)電(dian)(dian)(dian)(dian)(dian)路。3）綜合信(xin)號(hao)：當(dang)多個控制(zhi)信(xin)號(hao)按(an)規(gui)定的(de)(de)形式(shi)輸入(ru)多繞組繼電(dian)(dian)(dian)(dian)(dian)器(qi)(qi)時，經過比較綜合，達到預定的(de)(de)控制(zhi)效果。4）自動(dong)、遙控、監測：自動(dong)裝置上的(de)(de)繼電(dian)(dian)(dian)(dian)(dian)器(qi)(qi)與其他電(dian)(dian)(dian)(dian)(dian)器(qi)(qi)一起，可以組成(cheng)程序控制(zhi)線路，從(cong)而(er)實現自動(dong)化運(yun)行(xing)。

德國(guo)CMC是ABB旗下品(pin)(pin)牌之一，作(zuo)為一家全球性電(dian)(dian)(dian)氣產(chan)品(pin)(pin)供應(ying)商，擁有業內最(zui)廣泛的(de)電(dian)(dian)(dian)子(zi)時間繼電(dian)(dian)(dian)器、電(dian)(dian)(dian)子(zi)測量(liang)和監視繼電(dian)(dian)(dian)器、中間接(jie)口(kou)繼電(dian)(dian)(dian)器、接(jie)觸器以(yi)及(ji)電(dian)(dian)(dian)源產(chan)品(pin)(pin)，可(ke)以(yi)為您提供您所(suo)需的(de)低壓產(chan)品(pin)(pin)及(ji)元器件。控制設(she)備能夠提供智能信號，提高應(ying)用(yong)過程可(ke)靠性，同時還可(ke)以(yi)精確調(diao)節(jie)設(she)備，實現最(zui)大可(ke)用(yong)性。