SIRCOVER are manual multipolar changeover switches with positive break indication.
The family includes three ranges:
• SIRCOVER AC for dead time switching (I-0-II),
• SIRCOVER for overlapping contact switching (I-I+II-II), and
• SIRCOVER Bypass.

This version is a combination of three interlocked switches enabling usewith 3 + 6 poles or 4 + 8 poles.
They provide switching, source inversion and changeover under load for two low voltage power circuits, as well as their safety isolation by double breaking per pole.