SINAMICS V20 Size AC shield connection kit Shield connecting kit, supplementary system component, for SINAMICS V20. The shield connecting kit is available as option for frame size FSAC. This allows the shielding to be simply and efficiently connected, which is required so that converters can be installed in compliance with electromagnetic compatibility regulations (EMC). The shield connecting kit is available for the frame sizes FSAC, 200 - 240 V 1 AC. SINAMICS – simply my drive.