Overview
VS1-12 series indoor mounted high-voltage vacuum circuit breaker switchgear is suitable for three-phase power system with rated voltage of 12kV and frequency of 50Hz. A place where short-circuit current is interrupted.
VS1-12 series side-mounted vacuum circuit breaker adopts fixed installation and is mainly used in fixed switch cabinets.
Model meaning

Normal use environment
◇Ambient temperature: not higher than 40°C, not lower than -10°C (storage and transportation at -30°C are allowed).
◇Altitude: no more than 1000m. (If the altitude needs to be increased, the rated insulation level will be increased accordingly)
◇Relative humidity: the daily average is not more than 95%, the daily average of saturated vapor pressure is not more than 2.2×10*Mpa, and the monthly average is not more than 1.8×103Mpa.
◇ Earthquake intensity: no more than 8.
◇ Places without fire, explosion, serious pollution, chemical corrosion and severe vibration.
