ZN63 (VS1) -12 vacuum circuit breaker is suitable for three phase AC 50Hz and rated voltage 3.6kV to 12kV power system, as control and protection of industrial and mining enterprises, power plants and substations, and suitable for frequent operation occasions. It has perfect mechanical and electrical interlocking function, which is suitable for the main medium voltage switchgear in the market. The product is excellent in performance, widely used in industrial chemical industry, metallurgy, construction industry, manufacturing industry, civil residential district, hospital, enterprise power distribution, transportation, subway, high-speed railway and so on.
1.Ambient Temperature: No more than + 40℃ and no less than - 15℃.Average temperature is no more than +35℃ within 24 hours.
2.Altitude: No more than 1000m.
3.Relative Humidity: the average daily value is no more than 95%, the average monthly value is no more than 90%.
4.Earthquake Intensity: No more than 8 degrees.
5.Vapor pressure: average daily value is no more than 2.2kPa, average monthly value is no more than 1.8kPa.
6.Installation locations without fire, explosion danger, serious pollution, chemical corrosion and violent vibration.
1.The product adopts composite insulation technology and combines with an integrated spring operating mechanism to ensure stable electrical and mechanical performance.
2.lt can be used as a fixed installation unit, and also equipped with a special propulsion mechanism to form a handcart unit.
3.The structure is versatile and can match all the mainstream medium voltage switchgear in the market.
| Sr. | Content | Unit | Value | ||||
| 1 | Rated Voltage | kV | 12 | ||||
| 2 | Rated Frequency | Hz | 50/60 | ||||
| 3 | Rated Insulation level | Power Frequency Withstand Voltage in 1 min | kV | 42 | |||
| Lighting Impulse Withstand Voltage (Peak) | 75 | ||||||
| 4 | Rated Short-circuit Breaking Current | kA | 20 | 25 | 31.5 | 40 | |
| 5 | Rated Current | A | 630 | 630 1250 |
1250,1600 2000,2500 3150 |
1250,1600 2000,2500 3150，4000 |
|
| 6 | Rated Short-time Withstand Current | kA | 20 | 25 | 31.5 | 40 | |
| 7 | Rated Peak Withstand Current | 50 | 63 | 80 | 100 | ||
| 8 | Rated Short Circuit Making Current | 50 | 63 | 80 | 100 | ||
| 9 | Opening Time | mS | 20-50 | ||||
| 10 | Closing Time | mS | 35-70 | ||||
| 11 | Mechanical Life | times | 10000 | ||||
| 12 | Rated Voltage of Aux Control Loop | V | AC110/220, DC110/220 | ||||
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