1.126KV 252KV SF6 Circuit Breaker
SF6 circuit breaker is universal range of applications for the electrical system with elevation not greater than 2000m,ambient temperature not lower than -30℃,dirtiness grade not high than IV, alternating current 50Hz and the maximum voltage 126kV.
It is used for cutting the rated current, malfunction current or switching the circuitry, to control and protect the electrical system ,and it can also be used for connecting with the circuit breaker.
The gas of the SF6 is employed as the arc-extinguishing medium and the dielectric material. The self-extinction technology and the new-type spring operating mechanism are introduced in the SF6 circuit breaker. Thus the circuit breaker has good qualities with long electrical life, low operation power, lower noise, high reliability, simple structure, small and long overhaul periods. It can fully replace the same type one.
2.Parameter of 126kv 252kv SF6 Circuit breaker
Rated power frequency
withstand voltage (1min)
Rated thunder impulse
Rated short-circuit breaking current
Rated short-circuit making current(peak)
Rated current withstand current
Rated peak value withstand value
Rated short-circuit duration
Rated out-of-phase breaking current
Breaking current of close-in fault
Rated line-charging breaking current
Resistance other main circuit
Rated gauge pressure of SF6(20℃)
Minimum functional gauge pressure(20℃)
Annual leakage rate of SF6
Amount of water of SF6(V/V)
Electrical level of radio interference
Weight of the SF6
Weight of the circuit breaker
A. The altitude above sea level does not over 2,000 meters;
B. Surrounding air temperature: -40 ºC ~+40 ºC ;
C. The wind speed is not bigger than 34m/s;
D. The air filthy should be with in III degree
E. Installing places: Not flammable, the explosion hazard, chemistry corrode place;
F. Does not have the regular fierce vibration
5. Product qualification
6. Factory show
1. How to order the products?
Send the inquiry with detail item description or with Model number. If there is no packing demand .we take it as sea-way packing.
2. About lead time and shipping time?
The lead time depend on quantity of order. Usually shipped by sea, small order or urgent order.we can send you by air after received your agreement.
3．Life span of our XG brand?
Generally we promise two years quality guarantee, some products will be extended longer time for life span.
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