Further information for Siemens SIMATIC TDC subrack UR6021 21 slots - 6DD1682-0CH3
SIMATIC TDC, subrack UR6021, 21 slots, VMEBUS, 8 P0 slots, REPLACEABLE fan, suitable for GDM 5-row connector Synchronizable multiprocessor multi-subrack control system SIMATIC TDC (Technology and Drive Control) for large systems, configurable in CFC/SFC with the D7-SYS block library.