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JR20-400熱(re)繼(ji)電(dian)(dian)(dian)器,JR20-630熱(re)繼(ji)電(dian)(dian)(dian)器ABJ1系(xi)列三(san)(san)相(xiang)交(jiao)流(liu)保(bao)護繼(ji)電(dian)(dian)(dian)器（又(you)稱三(san)(san)相(xiang)電(dian)(dian)(dian)源監視器、相(xiang)序(xu)保(bao)護器、過欠壓保(bao)護器等）主(zhu)要用于交(jiao)流(liu)50/60Hz，額定電(dian)(dian)(dian)壓460V以JR20系(xi)列熱(re)繼(ji)電(dian)(dian)(dian)器適用于交(jiao)流(liu)50/60Hz，主(zhu)電(dian)(dian)(dian)路額定電(dian)(dian)(dian)壓至(zhi)(zhi)660V，電(dian)(dian)(dian)流(liu)至(zhi)(zhi)630A的電(dian)(dian)(dian)力(li)系(xi)統中作為(wei)三(san)(san)相(xiang)交(jiao)流(liu)電(dian)(dian)(dian)動(dong)機(ji)的過載和斷相(xiang)保(bao)護，具有斷相(xiang)保(bao)護，溫度補(bu)償，脫扣指示功能，能自動(dong)與手動(dong)復(fu)位(wei)下，工業(ye)三(san)(san)相(xiang)220V、380V、44

JR20-160熱繼(ji)(ji)電(dian)(dian)(dian)器(qi)(qi),JR20-250熱繼(ji)(ji)電(dian)(dian)(dian)器(qi)(qi)ABJ1系列(lie)三(san)(san)相交流保(bao)(bao)護(hu)(hu)繼(ji)(ji)電(dian)(dian)(dian)器(qi)(qi)（又稱(cheng)三(san)(san)相電(dian)(dian)(dian)源監視器(qi)(qi)、相序保(bao)(bao)護(hu)(hu)器(qi)(qi)、過欠壓保(bao)(bao)護(hu)(hu)器(qi)(qi)等）主(zhu)要(yao)用于(yu)交流50/60Hz，額定(ding)電(dian)(dian)(dian)壓460V以JR20系列(lie)熱繼(ji)(ji)電(dian)(dian)(dian)器(qi)(qi)適(shi)用于(yu)交流50/60Hz，主(zhu)電(dian)(dian)(dian)路(lu)額定(ding)電(dian)(dian)(dian)壓至(zhi)660V，電(dian)(dian)(dian)流至(zhi)630A的電(dian)(dian)(dian)力系統中作為三(san)(san)相交流電(dian)(dian)(dian)動(dong)機的過載和斷(duan)相保(bao)(bao)護(hu)(hu)，具(ju)有斷(duan)相保(bao)(bao)護(hu)(hu)，溫度補償，脫扣(kou)指(zhi)示功能，能自(zi)動(dong)與手動(dong)復位(wei)下(xia)，工業三(san)(san)相220V、380V、44

適用于交流50/60Hz,電(dian)(dian)流至105A的(de)長期工作或間斷(duan)工作的(de)一(yi)般交流電(dian)(dian)動機(ji)的(de)過載于斷(duan)相保護,可與(yu)接(jie)觸器(qi)接(jie)插安裝,也可獨立安裝. JRS5（TH-K）系列熱繼電(dian)(dian)器(qi)

適用于交(jiao)流(liu)50Hz/60Hz，主電(dian)路額(e)定電(dian)壓至(zhi)660V，電(dian)流(liu)至(zhi)160A的電(dian)力系(xi)統中作(zuo)為三相(xiang)交(jiao)流(liu)電(dian)動機(ji)的過載(zai)和斷相(xiang)保(bao)護(hu)，具有(you)斷相(xiang)保(bao)護(hu)、脫扣指示、溫度(du)補償，自動與手(shou)動復位功能。 JRS16系(xi)列(lie)熱繼(ji)電(dian)器

主要(yao)用于交流50HZ或(huo)60HZ，電(dian)(dian)壓至660V，電(dian)(dian)流至500A的(de)電(dian)(dian)力線路中，一般用作(zuo)三相(xiang)(xiang)感應電(dian)(dian)動機的(de)過(guo)載(zai)與斷相(xiang)(xiang)保護(hu) T105，T170，T250，T370 熱(re)繼電(dian)(dian)器(qi)