C-GIS Vacuum Circuit Breaker 12–40.5kV–Compact, Reliable, and GIS-Compatible

Indoor Vacuum Interrupter for Metal-Enclosed Gas-Insulated Switchgear Systems

The C-GIS Vacuum Circuit Breaker (VCB) is specially designed for integration into Compact Gas Insulated Switchgear (C-GIS) systems operating at 12kV to 40.5kV. Its compact structure and high dielectric strength make it ideal for space-constrained environments such as urban substations, wind/solar inverters, and offshore platforms. Using a sealed vacuum interrupter ensures arc-free operation, minimal maintenance, and exceptional switching endurance.

This breaker series is compatible with leading C-GIS designs from ABB, Siemens, and Schneider, supporting modular panel or tank-type configurations. Fully compliant with IEC 62271-100 and GB 1984 standards.

⚙️ Technical Specifications

🧩 Core Benefits

• Compact design optimized for GIS panels and hybrid switchgear

• Suitable for both primary and secondary distribution networks

• Vacuum arc-quenching ensures long life and no maintenance

• GIS compartment compatible with gas-sealed pressure zones

• Highly customizable control interface – supports SCADA & RTU

• Low SF6 content versions are available for environmental compliance

🏙️ Application Scenarios

• Urban & underground substations

• Rooftop PV inverter stations

• Offshore wind & oil platforms

• Modular container-type substations

• Utility secondary switchgear replacement projects

• Smart grid GIS panel retrofits

🌍 Real Feedback from International Clients

🗣️ Kevin L., GIS Panel Engineer – EDF Energy, France
“The C-GIS vacuum breaker installed seamlessly in our modular panel line-up. Quiet and consistent arc performance.”
📌 Source: EDF GIS Field Integration Notes, 2023

🗣️ Rachel M., Substation Designer – Tenaga Nasional, Malaysia
“Excellent fit for our 33kV smart substation expansion. Breaker interface fully matched our SCADA.”
📌 Source: TNB Smart Switchgear Retrofit Study, 2022

🗣️ Andrew T., Systems Integrator – Scottish Power
“We needed a GIS-compatible breaker with low maintenance needs. This one has performed flawlessly for 2+ years.”
📌 Source: Scottish Power Distribution Equipment Review, 2023

🗣️ Clara S., Engineering Director – Vestas, Denmark
“Perfect match for our offshore C-GIS cabinets. Handles frequent switching with no visible wear.”
📌 Source: Vestas Wind Platform Feedback Report, 2024

🗣️ Daniel B., Project Engineer – Iberdrola Spain
“Vacuum breaker lifecycle data is impressive. Fits tightly in 40.5kV GIS shells.”
📌 Source: Iberdrola MV Equipment Audit, 2023

❓ FAQ – C-GIS Vacuum Circuit Breaker

• What’s the difference between a C-GIS breaker and a standard VCB?
The C-GIS breaker is specially engineered to integrate with gas-insulated switchgear compartments, offering compactness and higher insulation coordination.

• Does it support SCADA communication?
Yes. Control ports are available with IEC 61850 compatibility for full digital substation integration.

• How does it perform under repeated switching?
With a vacuum interrupter rated for 10,000 operations, it ensures reliable service in active grids and renewable energy applications.

• Is it available with environmentally-friendly gas?
Yes. SF6-free or low-SF6 options using clean air/N2 blends are available.

• Can it replace legacy GIS breakers?
In most cases, yes. Custom mounting kits are available to retrofit existing GIS panels.

📞 Contact for Datasheet or Custom Quote

Thor – Electrical Engineer, Wei Shoe Elec
📞 Tel: +86-0577-62788197
📱 WhatsApp: +86 159 5777 0984
📧 Email: thor@weishoelec.com

The C-GIS Vacuum Circuit Breaker delivers compact protection without compromising performance. Upgrade your GIS system with safe, durable, and intelligent switching today.