FZN25 and FZRN25 vacuum load switches and combination devices are suitable for use in three-phase AC 50Hz ring networks or terminal power supply and industrial electrical equipment for load control and short-circuit protection. The load switch is used for load switching, closed-loop current, no-load transformer, and cable charging current. Combination appliances can disconnect any current up to the rated short-circuit current. Adopting direct action isolation fracture and vacuum arc chamber linkage. It has manual and electric functions.
The unique transmission structure design of FZN25 and FZRN25 allows the arc extinguishing chamber to only withstand high voltage at the moment of closing and opening, resulting in small size and low price.
FZN25 and FZRN25 can achieve one-time operation of isolating the fracture surface and extinguishing chamber fracture surface.
FNZ25 and FZRN25 have grounding valves that are interlocked with the grounding switch between the static contact and the moving conductor, ensuring safety and facilitating maintenance.