GHXGEN Series SF₆-Free Ring Main Unit | 12kV/24kV Medium Voltage Switchgear
The GHXGEN Series is an eco-friendly medium voltage ring main unit designed to replace conventional SF₆ switchgear with a low-GWP insulation solution while maintaining high reliability, compact design, and intelligent distribution capabilities.
Near-zero GWP
Clean air / eco-friendly insulation
IP67 Sealed Gas Tank
Maintenance-free design
IEC 61850 & Modbus
Ready for smart grids
12kV / 24kV
Modular MV distribution
CTA:
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Traditional RMUs rely on SF₆ gas, a powerful greenhouse gas. As utilities and industrial users move toward sustainable infrastructure, SF₆-free RMUs have become the preferred solution for new medium voltage distribution projects.
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SF₆-free RMU
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eco-friendly RMU
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medium voltage switchgear
Environmental Protection
Nearly zero GWP insulation
High Reliability
Sealed stainless-steel enclosure
Maintenance-Free
IP67 protected gas compartment
Modular Design
Flexible feeder configurations
Smart Distribution
IEC 61850 & Modbus communication
Global Applications
Utilities, renewables, EV charging
| Parameter | Unit | Value |
|---|---|---|
| Rated Voltage | kV | 12 / 24 |
| Rated Frequency | Hz | 50 / 60 |
| Rated Current | A | 630 / 1250 |
| Arc Extinguishing Medium | — | Vacuum |
| Insulation Medium | — | Clean Air / Pure Nitrogen |
| Rated Short-Time Withstand Current | kA/s | 20/4, 25/4 |
| Rated Peak Withstand Current | kA | 50 / 63 |
| Rated Short-Circuit Breaking Current | kA | 20 / 25 |
| Mechanical Endurance | Operations | Up to 20,000 |
| Protection Class (Gas Tank) | — | IP67 |
| Protection Class (Enclosure) | — | IP4X |
| Rated Annual Leakage Rate | % | 0.01 |
| Internal Arc Classification | kA/s | 20/0.5, 25/0.5 |
View Full Technical Datasheet. For complete technical specifications, please contact us for the latest product catalog.
The GHXGEN Series is widely used in:
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Urban medium-voltage distribution networks
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Industrial plants and industrial parks
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Commercial buildings and high-rise substations
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Outdoor switching stations and compact substations
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Renewable energy projects, including solar and wind power
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Utility smart power grid distribution systems
SF₆-Free RMU vs Conventional SF₆ RMU
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Feature |
SF₆-Free |
SF₆ RMU |
|---|---|---|
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Greenhouse Gas |
Near Zero |
High |
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Environmental Compliance |
Excellent |
Limited |
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Maintenance |
Low |
Low |
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Smart Grid Ready |
Yes |
Yes |
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Future-Proof |
Yes |
Depends on regulations |
Yes. We provide OEM and ODM manufacturing, including customized configurations, branding, electrical layouts, and technical support.
The GHXGEN series uses high-purity clean air or nitrogen instead of SF₆, providing an environmentally friendly insulation solution.
Yes. The GHXGEN series is designed in accordance with IEC standards and meets the technical requirements of Indonesia PLN.
The GHXGEN series is available in 12kV and 24kV, with rated currents of 630A and 1250A.
Standard production lead time is 15–30 days, depending on order quantity and customization requirements.
Yes. We can provide product catalogs, technical drawings, test reports, operation manuals, and other supporting documents upon request.
The GHXGEN series is designed as an eco-friendly non motorized gas insulated smart ring main unit, utilizing a reliable manual spring mechanism combined with advanced IoT smart monitoring sensors to optimize both cost and safety.
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Jiangsu Changyun Intelligent Technology Co., Ltd. provides factory-direct pricing, OEM/ODM manufacturing, fast delivery, and complete technical support for global power distribution projects.
✔ OEM & ODM Available
✔ IEC Compliant
✔ Indonesia PLN Compatible
✔ 17+ Years Manufacturing Experience
✔ Fast Quotation Within 24 Hours
12kV Eco-Friendly Gas Insulated Clean Air / Nitrogen Smart Grid Ring Main Unit (RMU)
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