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Side mounting type indoor High Voltage Vacuum Circuit Breaker
VS1/R-12
1.General Description
VS1/R-12 series of Indoor High Voltage Vacuum Circuit Breaker with Lateral Operating mechanism used spring to storage energy. The operating mechanism can be operated by two ways:manual and electric.The characteristics of
circuit breaker is accordance with GB 1964-2003 ,JB 3855-1996 and IEC 62271一100:2001.
2.Applying conditions:
Ambient temperature;-10℃----+40℃
Relative humidity:daily average ≤95%,monthly average ≤90%
Seismic intensity ：≤8
Saturated vapor pressure：daily average ≤2.2kPa，monthly average≤1.8kPa；
Altitude：≤1000m；（Not including special requirement）
Service environment：should be avoided fire, explosion risk, serious pollution, chemical corrosion and violent vibration
3.Technical specification
No. | Item | Unit | Data | ||
1 | Rated voltage | kV | 12 | ||
2 | Rated frequency | Hz | 50/60 | ||
3 | Rated insulation levels | Rated power frequency withstand voltage/1min | kV | 42 | |
Rated lighting impulse withstand voltage | kV | 75 | |||
4 | Rated current | A | 630 | 1250 | |
5 | Rated short circuit breaking current | kA | 20 | 20 | |
25 | 25 | ||||
31.5 | |||||
6 | Rated short circuit making current(peak) | kA | 50 | 50 | |
63 | 60 | ||||
80 | |||||
7 | Rated duration of short circuit | s | 4 | ||
8 | Rated operating sequence | O-0.3s-CO-180s-CO | |||
9 | Mechanical life | 次 | 30000 | ||
4.Overall drawing
5.Secondary connection diagram
Circuit breaker series 
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