HXGT8 Series RMU absorbs the advantages of other RMUs and compensates their weaknesses in order to satisfy requirements of city and rural grid construction and transformation. The bus room equipped with FT8-12(FR) vacuum load switch+fuse combination electrical equipment and the load switch room is separated by earthing metal partition board, and omits insulationnplugboard and corresponding interlocking device, needed by other RMUs. The fixed box equipped with VT2A type vacuum circuit breaker is used as circuit protection, it is a replenishment of RMU once wiring scheme.