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Dry Air Insulated Ring Main Units Series Ring Main Units (RMU)
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Dry Air Insulated Ring Main Units — SF6-Free Eco Switchgear
Dry air insulated ring main units (eco RMU) use clean dry air or nitrogen insulation instead of SF6, eliminating fluorinated greenhouse gas while providing compact ring-main switching and protection. Rated 12–24 kV, 630A, for green buildings, underground networks and SF6-free projects.
Applications
Green buildings and eco projects
Underground distribution networks
SF6-free municipal requirements
Industrial and renewable distribution
Key Features
- SF6-free dry air / nitrogen insulation
- No fluorinated greenhouse gas (GWP≈0)
- 12–24 kV, 630A ring-main switching
- Compact sealed-tank construction
- Vacuum interruption for switching and protection
- Suitable for green and underground projects
Selection Guide
Voltage
Match 12–24 kV system voltage.
Environmental
Choose dry air RMU where SF6-free or GWP reduction is required.
- Frequently Asked Questions
What is a dry air insulated RMU?
A dry air RMU uses clean dry air or nitrogen instead of SF6 gas, providing eco-friendly SF6-free switching with zero global warming potential.
Why choose SF6-free?
Regulations increasingly restrict SF6 (a potent greenhouse gas); dry air RMU avoids it while keeping compact sealed construction.
Instant Selection & Quote Calculator
Select your specifications to get an estimated price instantly.
| Base price (interpolation) | $2,350 |
| × Product factor | ×1.0000 |
| × Country factor | ×1.0000 |
| × Copper-linked factor | ×1.0000 |
| + Options / accessories | $0 |
Complete equipment — no winding copper linkage
Reference prices are for estimation only and do not constitute a formal offer.
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