Bench-tested 14–30 day warranty Ships 24–48h from EU The Siemens 6FC5357-0BB11-0AE0 is a SINUMERIK 840D NCU (Version A) numerical control unit, used as the central CNC control unit in SINUMERIK 840D machine-tool systems. It was professionally removed from a working installation and bench-tested for function before listing. Also searched as 6FC53570BB110AE0. Specifications Manufacturer Siemens Part number 6FC5357-0BB11-0AE0 Series SINUMERIK 840D Type Numerical control unit (NCU) Variant Version A Condition Used — tested Warranty 14–30 days SKU 6FC5357-0BB11-0AE0 Condition & testing Used component, power-on and function tested on the bench. Normal cosmetic signs of industrial use may be present. The photos show the actual unit you will receive. Compatible & related More CNC controls → All Siemens parts → Samonde is an independent reseller, not affiliated with or endorsed by Siemens. All manufacturer names and part numbers are used for identification purposes only. Always verify compatibility with your specific machine configuration before installation. Industrial automation components should be installed by qualified technicians only; Samonde accepts no liability for damage resulting from incorrect installation.