Compact & Space-Saving
Cost-Effective Maintenance
Long-Term Reliability
Modular & Flexible
Reliable Switching
Gas Insulated Ring Main Unit (RMU)
- Compact & Flexible
- Fast Fault Isolation
- Arc-Resistant Safety
- Smart Grid Ready
- Low Maintenance Design
Product Overview
The Ring Main Unit (RMU) is a compact, fully enclosed medium-voltage switchgear designed for urban, industrial, and utility networks. It ensures reliable power distribution, fast fault isolation, and safe operation in ring or radial network configurations. The RMU is ideal for overhead or underground distribution systems, providing flexibility for modern power grids and renewable energy integration.
Key Features
Technical Parameter
Gas Insulated Ring Main Unit Technical Parameters
| Item | Specification |
| Rated Voltage | 7.2–24 kV |
| Rated Current | 630–2500 A |
| Short-Circuit Withstand | 16–25 kA |
| Frequency | 50 Hz / 60 Hz |
| Switching Device | Vacuum / SF₆ |
| Busbar | Single / Double |
| Standard | IEC / IEEE |
| Brand | HONCON |
Standards & Compliance
Gas Insulated Ring Main Unit is manufactured and tested according to:
- IEC 62271-200 – Metal-enclosed switchgear
- IEC 62271-102 – Disconnector switches
- IEC 62271-203 / 209 – Ring Main Units
- ISO 9001 / ISO 14001 / ISO 45001
- Routine, type, and special tests can be provided upon request.
Configuration Options
- Rated Voltage: 6.6/7.2 / 12 / 17.5 / 24 kV
- Rated Current: 630 – 2500 A
- Short-Circuit Rating: 16 kA – 25 kA
- Switching Devices: Vacuum Load Break Switch, SF₆ Load Break Switch
- Busbar: Single or Double busbar optional
- Ingress Protection: IP3X / IP4X (cabinet front)
- Protection & Control: Relays, SCADA, metering, smart grid communication
- Environment: Indoor or outdoor, compact footprint for urban areas
FAQ
Q1: What is the MOQ of the Gas Insulated Ring Main Unit ?
A1: One set.
Q2: Do you support custom voltage or capacity?
A2: Absolutely. We can design transformers according to your project specifications.
Q3: How long is your delivery time?
A3: It depends on the order quantity and generally it takes about 25-30days after the deposit is received.
Q4: Which market do you usually sell?
A4: Middle East, Africa, Europe, Asia, etc.
Q5: How long is the warranty?
A5: Within 12 months from sale date.
Q6: How to choose suitable Ring Main Unit?
A6: Please find our blog on How To Choose The Right RMU.