Terminal module for ET 200S – what it is
The 6ES7193-4CB20-0AA0 is a passive screw-terminal module for the Siemens ET 200S distributed I/O system. It mounts a 15 mm wide electronic module and provides 2x4 screw-terminal connections without access to the AUX1 bus. It is sold in packs of 5. Depth is 43 mm, height 132 mm.
The 6ES7193-4CC30-0AA0 is physically identical – same 15 mm width, same 43 mm depth, same height – but ships as a single unit. The 6ES7193-4CB20-0AA0 packs five of the same terminal block under one order code. No difference in wiring, panel fit, or function. If your BOM requires multiple positions on the same rail, the 5-pack bundles them.