# Gas-Insulated Ring Main Units (RMU) - Switchgear, RMU & Substation Panels

> Verify configuration-specific ratings and compliance in the manufacturer documentation.

> Power/rating scope: 630 A - 1250 A Baralı | Voltage scope: 12 kV - 24 kV - 36 kV

**Canonical:** https://voltformer.com/category/switchgear-and-distribution-panels/ring-main-unit-gas-insulated-switchgear - markdown: https://voltformer.com/category/switchgear-and-distribution-panels/ring-main-unit-gas-insulated-switchgear.md

## Parent

[Switchgear, RMU & Substation Panels](https://voltformer.com/category/switchgear-and-distribution-panels.md): LV assemblies through 245 kV GIS, including RMU, air-insulated (AIS) and gas-insulated (GIS) switchgear systems.

## Sample Products

- [schneider-rm6 - Schneider Electric RM6](https://voltformer.com/switchgear/schneider-electric-rm6.md)
- [schneider-rm-airset - Schneider Electric RM AirSeT](https://voltformer.com/switchgear/schneider-electric-rm-airset.md)
- [abb-safering - ABB SafeRing](https://voltformer.com/switchgear/abb-safering.md)
- [abb-safering-air - ABB SafeRing Air](https://voltformer.com/switchgear/abb-safering-air.md)
- [astor-asrmu-12 - Astor ASRMU 12](https://voltformer.com/switchgear/astor-asrmu-12.md)
- [astor-asrmu-24 - Astor ASRMU 24](https://voltformer.com/switchgear/astor-asrmu-24.md)
- [astor-asrmu-36 - Astor ASRMU 36](https://voltformer.com/switchgear/astor-asrmu-36.md)
- [eaton-ulusoy-uring - Eaton/Ulusoy URING](https://voltformer.com/switchgear/eaton-ulusoy-uring.md)

## Technical specializations

- **SF6 Gas-Insulated Standard RMU (RM6 / 8DJH / SafeRing / CGM.3)** - Engineered on request: This taxonomy specialization is covered by the dedicated switchgear catalogue. Select the exact RMU configuration and verify gas medium, pressure, internal-arc class and ratings.
- **SF6-Free Eco-Friendly Pure Air RMU (RM AirSeT / SafeRing Air / Xiria)** - Engineered on request: This taxonomy specialization is covered by the dedicated switchgear catalogue. Select the exact SF6-free RMU configuration and verify insulation medium, internal-arc class and ratings.
- **Smart Grid & SCADA-Integrated Motorized RMU** - Engineered on request: This taxonomy specialization is covered by the dedicated switchgear catalogue. Select the exact motorized RMU configuration and verify RTU, protocol, interlocking and auxiliary-supply data.

## Official sources

- https://webstore.iec.ch/en/publication/6148

- **Last reviewed:** 2026-09-13

## RFQ

Use the family-specific tools in [the tool reference](https://voltformer.com/tool-reference.md) and the canonical taxonomy at https://voltformer.com/agent-catalog.json. Sub-category: ring-main-unit-gas-insulated-switchgear. The transformer query's subCategory parameter applies only to transformer families. Authenticate and obtain explicit confirmation before RFQ submission.