Summary

VS1-12 series indoor high-voltage vacuum circuit breaker is an indoor high-voltage switchgear suitable for use in three-phase power systems with rated voltage of 12kV and frequency of 50Hz as a protection and control appliance. Due to the special advantages of vacuum circuit breaker, it is especially suitable for places where frequent operation at rated current or multiple breaking of short circuit current is required.

VS1-12 series side-mounted vacuum circuit breaker adopts fixed installation, mainly used for fixed switchgear. This circuit breaker can be used alone, but also can be used in ring network power supply, box transformer or various non-standard power supply systems.

Normal use environment

◆ Ambient temperature: not higher than 40℃, not lower than-10℃ (storage and transportation allowed at-30℃).

◆ Altitude: not more than 1000m. (If the altitude needs to be increased, the rated insulation level should be increased accordingly).

◆ Relative humidity: the daily average value is not greater than 95%, the daily average saturated vapor pressure is not greater than 2.5×10³MPa, and the monthly average is not greater than 1.8×10³MPa.

◆ Earthquake intensity: not more than 8 degrees.

◆ Places without fire, explosion, serious pollution, chemical corrosion and violent vibration.