6FC5357-0BB22-0AE0 Siemens SINUMERIK 840D/DE NCU 572.3
The Siemens 6FC5357-0BB22-0AE0 is the SINUMERIK 840D/DE NCU 572.3 numerical control unit, the processor module at the heart of many SINUMERIK 840D and 840DE CNC machine tools. Siemens lists it as a spare part with an AMD K6-2 processor, NC memory of 0.5 MB, PLC memory of 96 KB, and PROFIBUS DP preparation. It is supplied without system software. Siemens has discontinued the module, so it is now mostly sourced as a replacement to keep existing 840D machines running.
6FC5357-0BB22-0AE0 Key Data
| Specification | Value (Siemens) |
|---|---|
| Product | SINUMERIK 840D/DE NCU 572.3 (spare part) |
| Control system | SINUMERIK 840D / 840DE |
| Processor | AMD K6-2 |
| NC memory | 0.5 MB |
| PLC memory | 96 KB |
| Fieldbus | PROFIBUS DP prepared |
| System software | Not included |
| Net weight | 0.920 kg |
| Country of origin | Germany |
| EAN | 4025515018261 |
| Commodity code | 85371010 |
| Export control | ECCN: EAR99APP / AL: N |
Product Lifecycle and Successor
Siemens classifies the 6FC5357-0BB22-0AE0 as PM490: product discontinuation, with the product discontinued since 30 September 2015. Siemens names the 6FC5357-0BB23-0AA1 as the successor type, noting that it is only compatible with system software from versions 04.04.39 and 05.03.42. When replacing an NCU 572.3, check the software version installed on the machine. That determines whether a like-for-like 6FC5357-0BB22-0AE0 or the successor type is the right choice.
Why Buyers Source the 6FC5357-0BB22-0AE0
- Like-for-like replacement for the SINUMERIK 840D/DE NCU 572.3
- Avoids the software compatibility constraints of the successor type
- Keeps established 840D machine tools in production
- Original Siemens hardware, made in Germany
SINUMERIK 840D NCU Replacement: What to Tell Us
To quote the right unit quickly, please send us:
- The full order number on your existing NCU (6FC5357-0BB22-0AE0)
- The hardware version letter, if shown on the label
- Your installed system software version, if known
- Required quantity and delivery destination
Buy the 6FC5357-0BB22-0AE0 Siemens from Atlantech Drives
Atlantech Drives specialises in sourcing discontinued and hard-to-find Siemens SINUMERIK spare parts for CNC users worldwide, with fast shipping. Our experienced commercial team will confirm availability, condition options, pricing and lead time for the 6FC5357-0BB22-0AE0 NCU 572.3. Request your quote today.
