SF6-Free solutions,
designed for a sustainable future

With new environmental regulations set to take effect in January 2026, Electroalfa is expanding its portfolio with sustainable solutions. They represent a modern and efficient alternative, ideal for customers who need safe equipment that complies with future standards.

Adopting SF₆-Free technology offers a significant competitive advantage while also meeting the needs for legal compliance and operational sustainability.

Why SF₆-Free

• SF₆ has an extremely high climate impact—over 23,000 times more powerful than CO₂ in terms of its greenhouse effect.
  
• An accelerated reduction in the use of fluorinated gases is necessary, in line with European environmental protection directives.
  
• EU Regulation 2024/573 bans the use of SF₆ gas in equipment with voltages below 24 kV, starting in January 2026.

By using ambient air as the insulating medium, this innovative technology eliminates the need for gas monitoring and interruptions for refilling, thus reducing maintenance costs and increasing system reliability.

The hermetically sealed design ensures safe and stable operation, without the risk of leaks or pressure fluctuations, offering long-term reliable performance. The busbar disconnector has the same operating sequences as an SF₆ load-break switch.

A single cell can replace the following functions:

• Line with disconnector
• Line with circuit breaker
• Transformer with circuit breaker
• Transformer with fuses (in combination with a self-powered relay)

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The Alfa Green range, designed for secondary distribution, ensures an efficient power supply for domestic and industrial consumers. These modular, metal-enclosed cells feature air insulation and a simple busbar system. They are designed to meet the requirements of most energy distributors and are an ideal solution for extending existing SF₆ switchboards.

Functions

• Load-break switch: Made of epoxy resin, which uses dry air for insulation and vacuum interrupters for switching.
  
• Insulation: Air-based, a safe and environmentally friendly medium.
  
• Structure: Modular, with fixed apparatus, allowing for rapid integration.
  
• Compatibility: Can extend or complement existing SF₆ switchboards.

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SM AIR SET is a modular range of secondary distribution cells up to 1250 A / 24 kV—with SF₆-FREE medium voltage technology, insulated in pure air and equipped with vacuum interruption technology (SVI™).

It is a solution designed for electrical grids, industrial infrastructure, and commercial buildings. SM AIR SET offers performance equivalent to traditional SF₆ solutions, but with zero emissions and without the risk of toxic substances.

Natively digital, the solution allows for continuous monitoring, predictive maintenance, and easy integration into SCADA systems.

Functions

• Disconnector
  
• Disconnector with fuse
  
• Circuit breaker
  
• Direct connection
  
• Medium-voltage (MV) current and voltage measurement

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