C-GIS Vacuum Circuit Breaker 12–40.5kV–Compact, Reliable, and GIS-Compatible
C-GIS Vacuum Circuit Breaker 12–40.5kV – Compact is a space-saving vacuum circuit breaker designed for Compact Gas Insulated Switchgear (C-GIS) systems. Covering rated voltages from 12kV to 40.5kV, it provides reliable switching and short-circuit protection for medium-voltage power distribution networks.
Featuring a compact structure, sealed vacuum interrupter, and flexible control interface, the C-GIS VCB is suitable for modular and gas-insulated switchgear configurations. It is widely used in urban substations, renewable energy facilities, containerized substations, and other space-constrained applications requiring reliable performance, low maintenance, and efficient switchgear integration.
Get a QuoteOverview
The C-GIS Vacuum Circuit Breaker (VCB) is designed for integration into Compact Gas Insulated Switchgear (C-GIS) systems with rated voltages from 12kV to 40.5kV. Its compact structure and reliable insulation performance make it suitable for space-constrained medium-voltage applications, including urban substations, renewable energy facilities, and offshore power platforms.
Featuring a sealed vacuum interrupter, the C-GIS VCB provides reliable arc interruption, stable switching performance, and reduced maintenance requirements. Its compact configuration supports efficient integration into modular panel and tank-type C-GIS systems, helping optimize installation space while maintaining reliable electrical performance.
The breaker is suitable for C-GIS solutions based on various switchgear configurations and can be customized for different system requirements. Designed to meet applicable requirements of IEC 62271-100 and GB 1984, it provides a reliable solution for modern medium-voltage power distribution and protection systems.
Technical Data
| Item | Unit | Parameter | |
| Rated Voltage | kV | 12 / 24 / 40.5 | |
| Rated Current | kA | 630 / 1250 / 2500 | |
| Rated Short Circuit Breaking Current | 20 / 25 / 31.5 | ||
| Mounting Style | / | Horizontal or vertical draw-out | |
| Control Interface | IEC 61850 compliant relay ports | ||
| Compliance | IEC 62271-100, GB 1984 | ||
Core Benefits
The C-GIS Vacuum Circuit Breaker combines a compact configuration with reliable vacuum interruption technology, making it suitable for modern gas-insulated and hybrid switchgear systems.
- Compact GIS-Optimized Design
The space-saving structure is designed for efficient integration into C-GIS panels and hybrid switchgear, making it suitable for installations with limited space. - Primary and Secondary Distribution Applications
Suitable for both primary and secondary medium-voltage distribution networks, providing flexible circuit switching and protection solutions. - Reliable Vacuum Interruption
Vacuum arc interruption provides stable switching performance, long service life, and reduced maintenance requirements. - Gas-Insulated Compartment Compatibility
Designed to integrate with sealed GIS compartments and gas-insulated pressure zones, supporting reliable installation within compact switchgear assemblies. - Flexible Control and Communication
The control interface can be customized for integration with SCADA, RTU, and other distribution automation systems. - Reduced-SF6 Options
Low-SF6-content configurations are available for applications with stricter environmental and sustainability requirements.
Typical Applications
The C-GIS Vacuum Circuit Breaker is suitable for a variety of compact medium-voltage power distribution and automation applications:
- Urban and Underground Substations
Ideal for compact substations where installation space and reliable power distribution are critical. - Rooftop Solar PV Inverter Stations
Provides switching and protection for renewable energy generation and grid connection systems. - Offshore Wind and Oil Platforms
Suitable for demanding environments requiring compact equipment, reliable insulation, and stable switching performance. - Container-Type Modular Substations
Its compact structure supports integration into prefabricated and containerized power distribution systems. - Secondary Switchgear Replacement Projects
Provides a practical solution for upgrading or replacing conventional secondary distribution switchgear. - Smart Grid GIS Panel Retrofits
Can be integrated with control and communication systems for distribution automation and intelligent switchgear modernization.
