Account
Inquiry
The 12kV VS1 Vacuum Circuit Breaker is a high-performance electrical protection device designed for medium voltage power systems. This 3-pole circuit breaker provides reliable interruption and protection for power grids and industrial equipment with rated voltages up to 12kV.
Featuring a vertical insulation housing for superior weather protection, this vacuum circuit breaker is available in both fixed and withdrawable configurations. The integrated design combines the operating mechanism with the VCB body for compact installation in various switchgear panels including KYN28(GZS1), XGN, and GG-1A types.
Engineered for demanding environments, this circuit breaker operates effectively in temperatures ranging from -10°C to +40°C and can withstand relative humidity up to 95%. Its robust construction ensures reliable performance even in earthquake-prone areas with intensity up to 8 degrees.
The vacuum interrupter technology provides excellent arc-extinguishing capability while maintaining minimal maintenance requirements. With mechanical endurance of 10,000 operations and rated current breaking operations up to 20,000 times, this circuit breaker delivers long-term reliability for critical power distribution applications.
Key technical specifications include rated short circuit breaking current from 20kA to 40kA, rated peak withstand current up to 100kA, and fast operation times (closing time 30-70ms, opening time 20-50ms). The breaker meets stringent international standards including ISO9001 and CE certifications.
