Summary
         FZW28-12 series of outdoor boundary vacuum load switch is suitable for outdoor three-phase AC distribution system with rated voltage of 12kV and rated frequency of 50Hz, as the opening and closing load current and closing short-circuit current.
        It is suitable for transformer substation, industrial and mining enterprises, city, rural power protection city, rural power automatic distribution network and places with frequent operation.
         The dividing load switch is composed of two parts: FZW28-12 vacuum load switch and controller. It is electrically connected through aviation socket and outdoor sealed control cable. It can reliably judge the milliampere zero sequence current and phase to phase open circuit current inside and outside the detection boundary, and it is suitable for distribution systems with different neutral grounding modes.

Model and its meaning


Main technical parameters


Installation diagram of control device


Installation diagram of switch body