Change-over switches manually operated suitable for breaking and change-over of two low voltage electrical circuits.
They are made by two standard switches of SD2 63A to 125A 4 poles series (see relative section for technical characteristic )
mechanically interlocked.
Rotary front operation by means of:
External double insulated door-interlock handle in I and II position, IP65 degree of protection, padlockable with up to three padlocks in O position in O position.