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RM6 Series - SF6 Gas-Insulated Ring Main Units
The RM6 series SF6 gas-insulated ring main units provide reliable medium voltage switching for distribution networks. All-in-one sealed SF6 tank design ensures long-term maintenance-free performance with load break switch and fuse combination protection.
Model Number Breakdown
Applications
Ring main distribution systems
Secondary distribution substations
Commercial and industrial power supply
Urban cable network switching
Key Features
- Hermetically sealed SF6 gas insulation
- Integrated load break switch and fuse protection
- Maintenance-free design with 30+ year service life
- Type-tested to IEC 62271-200 standard
Specifications Range
All specifications and dimensions can be customized upon request
| Key parameters | Model Range |
|---|---|
| Rated Voltage | 12 |
| Rated Current | 630 A |
| Max. Fuse Rating | 63 A |
| Short-time Withstand Current | 20 kA |
| Protection Level | IP54 |
| Standard | GB3906, IEC 62271-200 |
| Compare | Model | Series | Rated voltage (kV) | Current (A) | Frequency (Hz) | Standard | Weight | Dimensions |
|---|---|---|---|---|---|---|---|---|
| RM6-12 | RM6 | 12 | 630 | 50 | GB3906, IEC 62271-200 | 700 kg | 1000×800×1800 mm |
Product Drawing
Ring Main Unit - RM6-12
Note: This is a general product illustration. For detailed technical drawings and specifications, please contact our engineering team.
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The values below are computed from what you selected above. Anything that cannot be computed yet is shown as an em dash — never as zero.
Iₙ = S / (√3·U) · I_sc = 100·Iₙ / uₖ · S_sc = √3·U·I_sc · I_p = k·Iₖ
Still required to complete the calculation: rated capacity S, impedance voltage uₖ, short-time or peak withstand current.
Per-model values (P0 / Pk / uₖ declared by the factory, losses, noise, temperature rise, dimensions, weight) are not in the product library: those rows stay at an em dash until the factory parameter sheet is supplied. An em dash means the value is unavailable — it is never rendered as zero.
Reference prices are for estimation only and do not constitute a formal offer.
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