Product Overview
The ZN63(A) Permanent Magnet Indoor High-Voltage Vacuum Circuit Breaker is a next-generation switchgear that integrates a permanent magnet operating mechanism, vacuum interrupter, and intelligent control technology. Designed for 12kV three-phase AC 50Hz power systems, it reliably switches various types of electrical loads and is widely used in urban power grids, rural power grids, mining, railway, and other power network construction and renovation projects.
It is particularly suitable for scenarios requiring frequent operation or a high number of short-circuit interruptions. With its intelligent features, long lifespan, and maintenance-free design, it serves as an eco-friendly solution for power control and protection.
Core Features
- Permanent Magnet Operating Mechanism: Driven by high-performance permanent magnet materials, it offers fast response, stable opening/closing characteristics, and a mechanical life of over 20,000 operations, supporting high-frequency switching.
- Integrated Intelligent Control: Built-in intelligent control unit enables real-time status monitoring, fault early warning, and remote control, enhancing the intelligent management of power grids.
- Vacuum Arc Extinguishing Technology: Uses vacuum as the arc extinguishing medium, providing strong arc quenching capability, fast dielectric recovery after breaking, and long electrical life with no risk of combustion or explosion.
- Lifetime Maintenance-Free Operation: The sealed structure and maintenance-free design eliminate the need for regular inspections, significantly reducing operational costs.
- Eco-Friendly Performance: No SF₆ or other greenhouse gas emissions during operation, ensuring zero pollution to the surrounding environment and aligning with low-carbon sustainability trends.
- Advanced Manufacturing: Incorporates leading domestic and international technologies and craftsmanship, featuring a compact structure, strong anti-interference capability, and adaptability to complex grid conditions.
Technical Specifications
| Parameter |
Specification |
| Rated Voltage |
12kV |
| Rated Frequency |
50Hz |
| Operating Mechanism |
Permanent Magnet |
| Mechanical Life |
≥20,000 operations |
| Installation Method |
Indoor Fixed / Draw-out (optional) |
| Protection Class |
IP4X |
| Application |
Frequent operation, high short-circuit interruption requirements |
Typical Applications
- Urban & Rural Power Grid Renovation: Serves as the core switch for distribution lines, providing load control and fault protection to enhance grid stability.
- Mining & Railway Power Supply: Adapts to frequent start-stop scenarios of industrial loads, delivering reliable power support for large equipment.
- High-Frequency Operation Scenarios: Ideal for production workshops in metallurgy, chemical, and other industries requiring frequent opening and closing.
- Smart Grid Construction: Supports remote monitoring and automated control, meeting the upgrade needs of intelligent distribution systems.
Product Advantages
- Stable & Reliable Performance: The combination of a permanent magnet mechanism and vacuum arc extinguishing technology ensures precise switching and strong short-circuit breaking capacity, effectively reducing grid failure risks.
- Ultra-Low Operational Costs: The maintenance-free design minimizes on-site inspection labor and time investment, delivering significant total cost of ownership benefits.
- Intelligent Management: The intelligent control unit provides real-time equipment status feedback, enabling fault prediction and remote operation to improve grid maintenance efficiency.
- Low-Carbon & Eco-Friendly: No greenhouse gas emissions make it an ideal replacement for traditional SF₆-containing switches, aligning with national "dual carbon" goals.