SF6 Gas Insulated Ring Main Unit (RMU)
The SF6 Gas Insulated Ring Main Unit (RMU) is a compact, fully sealed
and maintenance-free medium voltage switchgear solution designed for
12–24kV distribution networks. It provides high reliability, strong
arc-resistant performance, and long-term stability for industrial and
utility applications.
Key Features
- Compact gas-insulated design ensuring full sealing and minimal maintenance
- SF6 insulated load break switch and circuit breaker options
- Modular structure for flexible configuration and system expansion
- Arc-proof compartment and high mechanical endurance
- Front-access panels for easy installation and wiring
- Integrated protection relay, metering, and monitoring components
- Ideal for ring network or radial power distribution systems
Technical Specifications
| Rated Voltage | 12kV / 24kV |
| Rated Current | 630A / 1250A |
| Rated Short-Circuit Current | 16kA / 20kA |
| Insulation Medium | SF6 Gas |
| Protection Level | IP4X external, IP2X internal |
| Operating Life | >20 Years |
Applications
- Industrial power distribution rooms
- Compact substations and utility grids
- Commercial buildings and infrastructure
- Renewable energy and micro-grid systems
Why Choose Our RMU?
Our medium voltage RMU offers enhanced safety, stable performance, and
customized solutions tailored to your project needs. Suitable for
international markets and compliant with IEC standards.
Need a quotation or technical drawing?
Contact our engineering team for a customized solution.






