DZ20LE series residual current circuit breaker is suitable for the circuit with AC 50Hz．rated voltage of 400V rated current uP to and including 400A。to prevent human electric shock and Ieakage．and to prevent the equipment insuIation being damaged or the fire for eadhinq fauII current This series of circuit breakers is applicable for the distribution in construction industry．with isolation and phase failure protection function．1t also can protect the circuit from the overload．shod circuit and under voltage and can be applied to control the infrequent transfer of circuit
主要特点 Strncture（）本系列漏电断路器电流动作型电子式漏电断路器，主要由零序电流互感器、电子控制漏电脱扣器及带有过载和短路保护的DZ20型断路器组成。全部零部件安装在一个塑料外壳中。 当被保护线路中有漏电或人身触电时，只要漏电电流IAn达到动作值，零序电流互感器的二次绕组就输出一个信号，并通过漏电脱扣器使断路器动作，从而切断电源起到漏电和触电保护作用。 This series of residual current circuit breaker is the residual current —operated electronic circuit breaker，composed of zero —sequence current transformer，electronic control leakage release and DZ20 type circuit breaker with overload and shod —circuit protection．All pads are mounted in a plastic enclosure． If the protected circuit has leakage or human electric shock only the leakage current IAn achieves the operation value the secondary winding of zero —sequence current transformer will output a signal，and this signal is transmitted to the leakage release，after receiving the signal，the release makes the circuit breaker operate，so as to take the effect of leakage protection by cutting off the power．
规格及主要技术参数 Main Technical Parameter（）
