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The VS1-12 vacuum circuit breaker is a high-performance electrical protection device designed for 12kV power systems. This 3-pole breaker features advanced vacuum arc-extinguishing technology and robust construction for reliable operation in demanding industrial environments.
With its integrated design combining the operating mechanism and VCB body, this circuit breaker offers excellent protection for power grids and industrial equipment. The vertical insulation housing provides superior weather resistance, making it suitable for various installation conditions.
The breaker is available in both fixed type and withdrawable type configurations, offering flexibility for different switchgear panel requirements. It is compatible with common switchgear panels including KYN28(GZS1), XGN, and GG-1A types.
Key technical specifications include a rated short circuit breaking current up to 40kA, mechanical endurance of 10,000 operations, and rated breaking operations of 20,000 times at rated current. The compact design features phase distances of 150mm, 210mm, or 275mm to accommodate various installation requirements.
The VS1-12 maintains stable performance across a wide range of ambient conditions, operating reliably at temperatures from -10°C to +40°C and relative humidity up to 95%. Its robust construction withstands earthquake intensities up to 8 degrees.
This vacuum circuit breaker is certified to ISO9001 and CE standards, ensuring quality and safety compliance. The energy-storage type operation mechanism provides consistent performance while the vacuum arc-extinguishing medium offers maintenance-free operation.
