The ZN63(VS1)-12 series side-mounted high-voltage vacuum circuit breaker is an indoor high-voltage switchgear suitable for threephase power systems with a rated voltage of 12kV and a frequency of 50Hz. It is used for the protection and control of electrical equipment. Due to the special advantages of vacuum circuit breakers, they are particularly suitable for places that require frequent operations at rated current or multiple interruptions of short-circuit currents. The ZN63-12 series side-mounted highvoltage vacuum circuit breaker is designed for fixed installation, mainly used in fixed switchgear. It can be used independently and is also suitable for ring network power supply, box-type substations, or various non-standard power supply systems.
Ambient condition
Altitude: ≤2000m (if the altitude increases, the rated insulation level should be correspondingly increased).
Ambient Air Temperature: Upper limit +60°C, Lower limit -40°C.
Wind Pressure: ≤700Pa (equivalent to a wind speed of 34m/s).
Seismic Intensity: ≤8 degrees.
Pollution Level: IV.
Maximum Daily Temperature Difference: ≤25°C.
Relative Humidity: Daily average ≤95%, Monthly average ≤90%.
Suitable for locations without flammable, explosive, chemically corrosive, and severe vibration.
