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智能電(dian)(dian)(dian)力繼電(dian)(dian)(dian)器該系(xi)列繼電(dian)(dian)(dian)器可(ke)與低(di)壓斷路器或低(di)壓接(jie)觸器等組成組合式(shi)的剩余電(dian)(dian)(dian)流動作保護器，主要適用(yong)于交流50Hz，額定電(dian)(dian)(dian)壓為400V及(ji)以下的TT或TN系(xi)統配電(dian)(dian)(dian)線路，防止(zhi)接(jie)地故障電(dian)(dian)(dian)流引起的設備(bei)和電(dian)(dian)(dian)氣火(huo)災事故，也可(ke)用(yong)于對(dui)人身觸電(dian)(dian)(dian)危(wei)險提供間接(jie)接(jie)觸保護。