6FC5357-0BB23-0AA0 SIEMENS ⍾ 6FC53570BB230AA0

*spare part* SINUMERIK 840D/DE CNC hardware NCU 573.5B 1.4 GHz, 128 MB without system software memory: NC 3 MB, PLC 128 KB PROFIBUS DP prepared

*spare part* SINUMERIK 840D/DE CNC hardware NCU 572.5B 1.0 GHz, 128 MB without system software memory: NC 3 MB, PLC 128 KB PROFIBUS DP prepared

*spare part* SINUMERIK 840D/DE NCU 573.3, 650 MHz, 64 MB without system software memory: NC 2.5 MB, PLC 96 KB PROFIBUS DP prepared according to IEC 61508