SafeLink SF6 Insulated Ring Main Unit Installation and Operating Instructions
The ABB SafeLink SF6 Insulated Ring Main Unit (RMU) is a compact, sealed switchgear solution utilizing SF6 gas insulation. It features a stainless steel tank containing all live parts and switching functions, ensuring a high level of reliability and personal safety. The unit is designed for distribution systems operating at up to 12kV and conforms to applicable IEC standards.
| Rated Voltage | 12kV |
|---|---|
| Filling Pressure | 1.2bar abs |
| Minimum Operating Pressure | 1.1bar abs |
| Rated Current | 630A |
| Short Circuit Making Current | 50kA peak |
| Switch-Fuse Rated Current | 200A |
| Mass | 250 kg |
The unit is designed for operation at altitudes up to 1000m above sea level.
The unit uses SF6 (IEC 60376) as the insulating gas.
Yes, it can be installed outdoors if mounted in an enclosure with an IP55W rating.