1.FN7-12KV 11KV 10KV Vacuum Load Break Switch With Fuse
FN7-12 series indoor AC HV load switch is a gas-production HV load switch and fuse combination unit with arc quenching principle.It is applied in three-phase AC 50Hz power system with rated voltage 12kV for breaking the load current and making the short-circuit current.The fuse combination unit can break the short-circuit current and has the function of single-phase fuse three-phase tripping and breaking.It is the ideal selection for protecting the line, equipment and transformer. Its performance meets the requirements of national standards GB 3804-2004 High-voltage alternating-current switches for rated voltage above 3.6kV and less than 40.5kV and GB 16926-2009
YFN7-12 HV Load Switch
Rated short-circuit breaking current of fuse
Rated breaking transfer current
Main loop resistance
Rated active load breaking current
Rated short-time withstand current(thermal stability current)/duration
Rated short-time withstand current(thermal stability current)/duration of earthing switch
Rated peak withstand current(dynamic current)
1 min power-frequency withstand voltage(effective value)to earth,phase-to-phase/isolating fracture
Full-wave lightning impluse withstand voltage(peak) to earth,phase-to-phase/isolating fracture
Rated opening operation voltage
Time of switch opening triggered by breaking of fuse
simple & reasonable structure
small operating force
reliable performance & convenient maintenance
(2).Ambient temperature-25ºC-+ 40ºC;
(3).The daily average of relative humidity shall not be larger than 95% and the monthly average shall not be larger than 90%:
(4).The ambient air shall not be subject to the obvious pollution such as corrosive or combustible gas and steam;
(5).The site without fire hazards and explosion hazards;
(6).The site that the seismic intensity does not exceed degree 8; the gradient shall not exceed 5°
6. Shippment service
(1). How to order the products?
Send your product name, model and drawing and let us confirm the right one, and recommend and make a good offer.
(2). About lead time and shipping time?
Usually it is 3-10 days, if quantity is big, lead time will be extended.
(3)．Life span of our XG brand?
Generally we promise two years quality guarantee, some products will be extended longer time for life span.
XIGAO Electricenergy Group Co.,LTD.
Add.: No. 6, Weibei Industrial Park, Xi'an City, Shaanxi Pro., CN. 710600
Phone: 0086 13319220197