
11kv 12kv Vs1-12 Indoor High Voltage Vacuum Breaker. Solid-sealed Insulation: Epoxy resin poles protect against dust, moisture, and condensation for stable performance. Reliable Arc Extinguishing: High-quality vacuum interrupters ensure fast extinction with no re-ignition. Long Mechanical Life: Mechanical life exceeds 30,000 operations with 50 full-capacity short-circuit breaks. Flexible Operation Mode: Spring energy storage supports both manual and electric operation modes. Multiple Current Ratings: Rated current ranges from 630A to 3150A for diverse load requirements. High Compatibility: Compatible with standard KYN28 switchgear in both drawout and fixed types. Safety Interlocking: Complete mechanical interlocking devices prevent misoperation for enhanced safety. Customizable Altitude: Standard up to 1000m with customizable options for high-altitude environments.