Medium voltage gas-insulated ring main unit for secondary distribution, 12 kV, 630A
SafeRing Air is a ring main unit (RMU) for the secondary distribution network. The SafeRing Air portfolio is based on dry air technology as insulation medium. The switchgear design is based on the existing SafeRing portfolio, offering an advantage to the end users with the same user interface, footprint, spare parts and operation.
SafeRing Air can be supplied in 18 different standard configurations suitable for most switching applications in 12 kV distribution networks.
SafeRing Air is a completely sealed system with a stainless steel tank containing all live parts and switching functions. A sealed steel tank with constant atmospheric conditions ensures a high level of reliability as well as personnel safety and a virtually maintenance-free system.
Rated voltage: 12kV
Rated current: 630A
Rated short time current: 20 kA for 3s
Dry air insulation with Global Warming Potential (GWP) of zero
True GIS design: Protected from ambient conditions by sealed gas compartment
Easy replacement: Same compact dimensions as the proven SafeRing with SF6 insulation
Smart grid enabled: Available with sensor technology and digital communications options
Most typical variants: RMU with standard variants up to 5 modules
Harmonized for higher flexibility: Select SafePlus Air switchgear for more options