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BackHome > Products > Vacuum circuit breaker

Vacuum circuit breakerOutdoor Type Zw10-12/630-25 Vacuum Circuit Breaker

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Zw10-12 outdoor high voltage vacuum circuit breaker (hereinafter referred to as circuit breaker) is an outdoor power distribution equipment with rated voltage of 12kV and three-phase AC 50Hz. It is mainly used in power distribution systems such as rural power network, urban power network, railway, mine and port, especially for outdoor overhead lines.

1. Ambient temperature: not higher than +40 oC, not less than -15 oC (at -30 oC to allow storage and transportation).
2. Altitude: not exceed 2000m. (if the altitude needs to be increased, the rated insulation level shall be increased accordingly).
3. Earthquake intensity: not more than 8 degree.
4. The daily average value of air relative humidity shall not be greater than 95%, and the monthly average value shall not be greater than 90%;

5. No fire, explosion hazard, serious filthy, chemical corrosion, as well as places of intense vibration

.	Item	Unit	Data
1	Rated voltage	kV	12
2	Rated Current	A	630/1250
3	Rated Frequency	Hz	50/60
4	Rated short circuit breaking current	kA	12.5/25
5	Rated peak withstand current(peak)	kA	31.5/50
6	Rated short time withstand current(4s）	kA	12.5/25
7	Rated short circuit making current(peak）	kA	31.5/50
8	Rated short circuit breaking current breaking times	Times	30
9	Mechanical life	Times	10000
10	High-voltage test with working frequency（1min)	kV	42
11	Lightning impulse withstand voltage(peak）	kV	75
12	Secondary loop 1 min power frequency withstand voltage	kV	2
13	Net weight	kg	150