Technology Watch
OEMs & Products
SF6-free technology comparison. Tracks MV and HV alternatives from major switchgear manufacturers.
Product catalog
SF6-free and transitional switchgear products.
| OEM | Product | Technology | Voltage | SF6-free | Insulation |
|---|---|---|---|---|---|
| Siemens Energy / Siemens | SF6-free MV switchgear offer | SF6-free MV switchgear | MV | Yes | vacuum / clean air / solid dielectric |
| Siemens Energy / Siemens | 8DJH 12 | Clean air insulated switchgear | MV | Yes | dry air / synthetic air |
| Siemens Energy / Siemens | 8DJH 24 | Clean air insulated switchgear | MV | Yes | dry air / synthetic air |
| Siemens Energy / Siemens | SION 3AE5 | Vacuum circuit breaker | MV | Yes | vacuum interrupter |
| ABB / Hitachi Energy | Low-GWP GIS offer | Low-GWP gas-insulated switchgear | HV | No | fluoronitrile / low-GWP gas mixtures |
| ABB / Hitachi Energy | EconiQ GIS | g3 gas mixture (3M Novec) | HV | No | fluoronitrile (C4F7N) + CO2 |
| ABB / Hitachi Energy | EconiQ AIS breaker | g3 gas mixture (3M Novec) | HV | No | fluoronitrile (C4F7N) + CO2 |
| ABB / Hitachi Energy | VD4-AF | Vacuum circuit breaker | MV | Yes | vacuum interrupter |
| Schneider Electric | SF6-free MV switchgear offer | SF6-free MV switchgear | MV | Yes | vacuum / clean air / solid dielectric |
| Schneider Electric | SM AirSeT | Clean air insulated switchgear | MV | Yes | dry air / synthetic air |
| Schneider Electric | RM AirSeT | Vacuum circuit breaker | MV | Yes | vacuum interrupter |
| Schneider Electric | MC Set | Solid dielectric switchgear | MV | Yes | epoxy / solid insulation |
Senegal / Senelec OEM context
Indicative West African grid context — pending Senelec inventory confirmation.
- Siemens, Schneider, ABB, and Crompton Greaves are the major CB manufacturers typically found in West African transmission grids; the Senelec inventory will confirm the installed fleet
- EU F-gas regulation bans new SF6 in MV equipment (<24 kV) from January 2026
- SF6-free MV alternatives use vacuum, clean air, or solid dielectric insulation
- HV transitional products use fluoronitrile or low-GWP gas mixtures (not fully SF6-free)