Time to choose secondary substations with gas-free switchgear
With the EU’s new ban on SF₆ gas in switchgear coming into force in 2026, Holtab has developed a new generation of secondary substations prepared for SF₆-free switchgear. These substations have undergone rigorous safety testing with top results.
“We are proud to have developed a solution that delivers the highest level of personal safety,” says Peter Borgström, Development Manager at Holtab.
The EU regulation 2024/573, adopted by the European Commission to reduce greenhouse gas emissions, specifically addresses SF₆ (sulphur hexafluoride) used in certain types of switchgear. While SF₆ is a highly effective insulating medium, it is also a powerful greenhouse gas.
Holtab’s secondary substations have been carefully tested to ensure the same high level of safety with the new SF₆-free switchgear as with traditional solutions.
“Our products are tried and tested. Our customers can feel confident in meeting the new requirements,” Peter continues.
Effective from 2026
As of 1 January 2026, the ban on SF₆ gas will apply to all switchgear up to and including 24 kV.
Holtab’s secondary substations have undergone extensive arc-fault testing at independent test institutes. These tests ensure that anyone working inside or close to the substation remains unharmed in the event of an arc fault.
“Those working with our products must feel safe. Should an arc fault occur, glowing particles and toxic gases are directed away from the operator’s workspace. The arc gases are released through a limiter into the transformer compartment, ensuring no one is harmed,” explains Gordon Gunnarsson, Holtab’s Technical Manager.
“We are pleased to be ahead of the curve. Our secondary substations are now future-proof,” Peter concludes.
The upcoming ban on SF₆ gas in switchgear will be extended further. From 2030, it will also apply to switchgear above 24 kV and up to 52 kV.
