... , rated voltage 12KV.The prduction of this series shall be in conformity with GB1984,GB3309,JB3855,DL/T403 and relative IECstandard ... and within the rated technical parameter, it can be operated in safety and reliable, at same time , it can be operated ... AC or DC, also it can be operated by manual.In the switch cabinet, the product can be installed by means of ...