8VM3
Gas-insulated switchgear 8VM3 Blue GIS, up to 72.5 kV, 50 kA, clean-air insulation with vacuum interrupter
8VM3
- Zero F-gases: clean-air insulation (80% N2 / 20% O2), Zero SF6, Zero GWP — no gas-handling regulations, density checks, F-gas training, reporting or end-of-life gas disposal
- Based on the long-proven 8DN8 GIS design with higher performance at the same footprint; enhanced module kit for multiple compact switchgear arrangements
- Two documented configurations: substation bay up to 3,000 A / 50 kA (3 s), indoor/outdoor, -50 °C to +55 °C; and compact 1,250 A / 31.5 kA (3 s) arrangement with up to three bays pre-assembled and fully tested in the factory
- Maintenance-free vacuum interrupter, building on 10+ years of high-voltage vacuum switching experience up to 145 kV; first major inspection after more than 25 years, expected lifetime beyond 50 years
- Specifically designed for wind-turbine conditions — applications span onshore grid and industry, onshore renewables (wind and solar), offshore substations and offshore wind
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8VM3 covers up to 72.5 kV of the gas-insulated switchgear range (≤ 550 kV across the category, √ scale).
Specifications
Main
| Product family | 8VM3 Blue GIS (Siemens Energy Blue portfolio) |
| Type | Gas-insulated metal-enclosed switchgear, three-phase encapsulated, modular design based on the proven 8DN8 GIS |
| Maximum system voltage | up to 72.5 kV |
| Insulation medium | Clean air (80% N2 / 20% O2, cleaned and free of humidity), Zero SF6 / F-gases, Zero GWP |
| Interrupter technology | Vacuum |
| First major inspection | > 25 years |
| Expected lifetime | > 50 years |
Electrical
| Rated frequency | 50 / 60 Hz |
| Rated continuous current | up to 3,000 A (substation configuration) / up to 1,250 A (compact pre-assembled configuration) |
| Rated short-time withstand current (3 s) | 50 kA (substation configuration) / 31.5 kA (compact pre-assembled configuration) |
Mechanical / environment
| Circuit-breaker drive mechanism | Stored-energy spring |
| Rated filling pressure | 0.66 MPa (abs.) substation configuration / 0.60 MPa (abs.) compact configuration |
| Bay width (common pole drive) | 800 mm (substation configuration) / 1,050 mm (compact configuration) |
| Bay height / depth (depending on bay arrangement) | 2,600 / 4,440 mm (substation configuration); 2,400 / 2,200 mm (compact configuration) |
| Ambient temperature range | -50 °C to +55 °C (substation, indoor/outdoor) / -30 °C to +40 °C (compact, indoor) |
| Installation | Indoor / outdoor (substation configuration); indoor (compact configuration); up to three bays pre-assembled in the factory |
Standards & certifications
| Ratings and type tests | IEC / IEEE (per manufacturer technical data; individual standards not itemized in source) |
| EU F-gas regulation | Clean-air insulation contains no fluorinated gases (Zero GWP), meeting the EU requirement allowing only GWP < 1 solutions where available |
Options & variants
The two rows reproduce the two technical-data tables in the 2024 product flyer verbatim. The flyer does not name the configurations; page 5 is captioned 'Switchgear with up to three bays pre-assembled in the factory' and matches the wind-turbine application described in the accompanying 8VM3-WTG technical presentation. No order-data-derived variants exist for this family.
| Configuration | Max system voltage | Continuous / short-time current (3 s) | Bay width / height / depth | Rated filling pressure | Ambient range | Installation |
|---|---|---|---|---|---|---|
| 8VM3 substation bay (flyer p. 4 technical-data table) | up to 72.5 kV | 3,000 A / 50 kA | 800 / 2,600 / 4,440 mm | 0.66 MPa abs | -50 °C to +55 °C | indoor / outdoor |
| 8VM3 compact arrangement, up to three bays pre-assembled in the factory (flyer p. 5 technical-data table) | up to 72.5 kV | 1,250 A / 31.5 kA | 1,050 / 2,400 / 2,200 mm | 0.60 MPa abs | -30 °C to +40 °C | indoor |
Documents & downloads
Brochure 8VM3 Blue GIS — product flyer 2024 (technical data, both configurations)
Presentation 8VM3 for wind turbine generators — technical presentation
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