1.FZN21-12KV 11KV 10KV indoor Gas Insulated Air Load Break Switch
FZN21-12(R)D/T125-31.5 Series Indoor AC high voltage load switch- fuse combination units appliances for three-phase AC 10kV, 50Hz power system, or with the complete power distribution equipment and loop-network switch cabinet , combined substation and other ancillary uses, is widely used in urban network construction and transformation engineering, industrial and mining enterprises, high-rise buildings and public facilities ,can be used as ring power supply unit or terminal equipment, play power distribution, control and protection.
Technical performance of the products meet the IEC publication 60265-1/FDIS “high voltage switches, Part 1: Rated voltages below 1kV over 52kV high voltage load switch”, IEC60420 “High Voltage AC load switch – fuse combination units”; and CB16926 “AC High-voltage load switch - fuse combination units”, GB3804 “3-63kV AC high voltage switches” requirement.
2.Product parameter data
Rated insulation level
1min power frequency withstand voltage
Arc-quenching chamber fracture 48
Earth , phase 42, insulating fracture 48
Lightning impulse withstand voltage (peak)
Earth , phase 75, insulating fracture 85
Rated dynamic current (peak)
4S thermal current
Rated power load breaking current
Rated closed-loop breaking current
Rated cable charge breaking current
Rated breaking no-load transformer capacity
Rated breaking AC current
Rated short-circuit closed current
Rated current breaking times
Permitted wear-thickness of vacuum arc-quenching chamber contact
Manual operating torque
A. The ambient air temperature: Max.: +40 °C. Min: -10 °C.
B. The altitude ≤ 1000m.
C. The relative humidity of air. daily average ≤ 90%. monthly average ≤ 95%.
D. The ambient air should not be obviously polluted by corrosively or the flammability gas and gleam. etc.
E. Without frequent shake.
F. Environment degree: grade Ⅱ.
5. Warehouse view
XIGAO Electricenergy Group Co.,LTD.
Add.: No. 6, Weibei Industrial Park, Xi'an City, Shaanxi Pro., CN. 710600
Phone: 0086 13619262174