High Voltage Fixed Vacuum Circuit Breaker ZN63(VSG)-12 The ZN63(VSG)-12 is a high-voltage fixed vacuum circuit breaker designed for reliable and efficient operation in medium-voltage power distribution systems. Rated at 12 kV, it is widely used in industrial, commercial, and utility applications to protect electrical networks from overloads, short circuits, and other fault conditions. Its advanced vacuum interrupter technology ensures high breaking capacity, long service life, and minimal maintenance requirements. Key Features 1. Vacuum Interrupter Technology The breaker utilizes a high-performance vacuum interrupter to extinguish arcs quickly and efficiently. The vacuum environment ensures minimal contact erosion, high dielectric strength, and consistent performance over thousands of operations. 2. Compact and Robust Design The ZN63(VSG)-12 features a fixed-mounted design, making it suitable for indoor switchgear applications. Its compact structure allows for easy integration into metal-clad switchgear panels, optimizing space utilization. 3. High Breaking Capacity With a rated short-circuit breaking capacity of up to 31.5 kA, the breaker can handle severe fault conditions while maintaining system stability. 4. Reliable Mechanical and Electrical Performance - Spring-operated mechanism ensures fast and precise switching. - Low operating energy reduces wear and tear, enhancing longevity. - High mechanical endurance (up to 30,000 mechanical operations) ensures durability. 5. Safety and Protection - Integrated earthing switch (optional) for safe maintenance. - Anti-condensation heaters prevent moisture buildup in harsh environments. - IP4X protection rating ensures resistance to dust and accidental contact. 6. Smart Compatibility The breaker can be integrated with digital protection relays and SCADA systems for remote monitoring and control, supporting modern smart grid applications. Applications - Power distribution substations - Industrial plants - Renewable energy systems - Railway and mining power networks Advantages - Maintenance-free operation due to sealed vacuum technology. - Environmentally friendly (no SF6 gas, oil-free). - Low energy consumption during operation. The ZN63(VSG)-12 is a dependable solution for medium-voltage protection, combining high performance, safety, and adaptability for modern power systems.