MRCD根據其電(dian)(dian)(dian)(dian)(dian)(dian)平(ping)和持續時間檢(jian)(jian)測和評估剩(sheng)余(yu)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)。如果(guo)超(chao)過限制值，它們將(jiang)通(tong)過外部(bu)關閉設(she)備觸發受(shou)影(ying)響系(xi)(xi)統部(bu)件的(de)(de)斷開。如果(guo)由于(yu)(yu)高負(fu)載(zai)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)或電(dian)(dian)(dian)(dian)(dian)(dian)源電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)而無(wu)法使用(yong)剩(sheng)余(yu)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)斷路器(qi)，則模塊化(hua)剩(sheng)余(yu)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)裝置（MRCD）用(yong)于(yu)(yu)防止剩(sheng)余(yu)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)。MFR系(xi)(xi)列的(de)(de)模塊化(hua)剩(sheng)余(yu)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)斷路器(qi)設(she)計緊湊，額(e)(e)定電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)高達500 V AC。剩(sheng)余(yu)響應(ying)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)水平(ping)由為(wei)(wei)該(gai)系(xi)(xi)列選擇(ze)的(de)(de)相應(ying)變(bian)壓(ya)(ya)器(qi)確定。 這(zhe)些器(qi)件還具有兩個無(wu)電(dian)(dian)(dian)(dian)(dian)(dian)位NO觸點(dian)，用(yong)于(yu)(yu)控制關斷裝置。具有剩(sheng)余(yu)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)特(te)性的(de)(de)模塊化(hua)保護裝置A檢(jian)(jian)測正弦交流(liu)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)以及(ji)脈動(dong)直流(liu)剩(sheng)余(yu)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)。標準設(she)計的(de)(de)設(she)備用(yong)于(yu)(yu)監控額(e)(e)定電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)為(wei)(wei)500 V，額(e)(e)定頻率為(wei)(wei)50 Hz的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)路。