YFG-12KV-1250A is a kind of disconnector, which is cheap and easy to install with its little maintenance,long life and small size 

It complies with the technical requirements of GB1984-89 and GB/T1984-2003“High-voltage alternating-current circuit-breakers" 

Major loop:1250A-20KA(4s);25KA (3s);Mechanicalfe: 5000 times 

Ground loop:20KAl2s); Mechanical life: 2000 times.

Working condition

O Altitude is not more than 1000m, earthquake intensity is not more than 8 degrees

O Pollution resistance level:Ill

O Ambient temperature:-40 ℃~+140 ℃, relative humidity daily averag≤90%, monthly average≤ 90%

O Frequently vibrating installation sites, places with water vapor, gas, chemical corrosive deposits salt spray, dust and dirt, and fires, that

significantly affect the performance of the mechanism and places with fire or explosion hazards are not suitable