Isolate Switch 1.Type:FN12 2.Standard|:IEC GB 3.Main Material:Procelain&Steel Outline FN12-12D and FN12-12DRSwitchgear is a rated voltage of 12kV, rated frequency 50Hz three-phase high-voltage switchgear for the division and load current, Loop current, no load transformer and cable charging current, short circuit current of the Closing, fuse may short-circuit breaking current, with equipment ...