Vacuum Contactors

3RT12 vacuum contactors are the right choice if you place significant value on extremely high performance and availability and increased personnel and plant safety. When compared to conventional air contactors, they offer a significantly higher electrical endurance. There are no arcs and no switching gases. This means that main contact wear and erosion are negligible.

Vacuum contactors are available in sizes S10 and S12 over all power classes from 110 to 250 kW/400 V. The technical and economic benefits of vacuum contactors are especially important in applications with a high switching frequency, for heavy-duty starting and for applications up to 1000 V.