FZRN21-12D Indoor AC HV Vacuum Load Break Switch and Fuse Combination Apparatus 

FZN21-12D/T630-20, FZRN21-12D/T125-31.5 Indoor HV Vacuum Load Switch and Combination apparatus applies to Urban Electric Network Improvement Project, industrial enterprise, high building and public facility for terminal power
supply of looped net and distribution, control and protection of electrical equipments. It is also can equipped with ring main unit and combination substation. Its performance accords with IEC 265《HV Load Switch》and GB 3804.1《3～63kV AC HV Load Switch》.

Technical Specification/Parameter

◆Rated voltage: 12KV ◆Rated frequency: 50HZ ◆Rated maximum fuse current:125A ◆Transfer current:1550A ◆1min P.F withstand voltage:phase to phase,to earth 42KV,gaps49KV ◆Lightning impulse withstand voltage:phase to phase,to earth 75KV,gaps85KV ◆Impinger model for fuse:Medium model