Summary
FZN25, FZRN25 type vacuum load switches and combination electrical appliances are suitable for three phase AC 50Hz loop network or terminal power supply and industrial power equipment. They are used for load control and short circuit protection. Load switches are divided into load, closed loop current, no load transformer and cable charging current. A combiner can break any current to the rated short circuit current. The linkage between direct isolated fracture and vacuum arc chamber is adopted. It has the function of manual and electric.
The unique transmission structure of FZN25 and FZRN25 is designed. The arc extinguishing chamber is only subjected to high pressure at the moment of closing and breaking, so the volume is small and the weight is light.
FZN25 and FZRN25 can realize the one-off operation of isolating fracture and interrupting the arc chamber.
FNZ25 and FZRN25 are connected to the grounding switch between the static contact and the electric contact conductor, which not only ensures the safety but also facilitates the maintenance.
Model meaning
Main technical parameters
Configuration and size installation of FNRN25-12D/125-31.5 vacuum load switch fuse combiner
Shape and installation size of FNRN25-12D/T630-20 vacuum load switch
