西門子6FC5203-0AB20-1AA0門子數控伺服系統：802C S、802D SL、810D DE、820D SL、840C CE、840D DE、840D SL、840Di SL、S120數控系統、數控伺服驅動模塊、控制模塊、電源模塊、備品備件等。
6FC5247-0AA00-0AA2
NCU盒用于安裝NCU573.5/573.4/573.3/573.2/572.5/572.4/572.3/572.2/571.5/571.4/571.3/571.2/561.5/710.2/720.2/720.2PN/730.2/730.2PN/CCU1/CCU3/CCU3.4/PCU20/PCU50/PCU50.3/PCU70/6FC5357/6SN1118/6SN1124/6SN1123/6SN1145/6SN1146/1FK/1FT/數控主板/控制模塊/驅動模塊/電源模塊/功率模塊/伺服電動機/進口低壓電動機等系列。
西門子840D/DE數控伺服系統NCU主板：
NCU 571.2    6FC5357-0BB11-0AE0
NCU 571.3    6FC5357-0BB11-0AE1
NCU 571.3    6FC5357-0BB13-0AA0
NCU 571.3    6FC5357-0BB13-0AA1
NCU 571.4    6FC5357-0BB14-0AA0
NCU 571.4    6FC5357-0BB12-0AE0
NCU 571.5    6FC5357-0BB15-0AA0
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NCU 572.2    6FC5357-0BB21-0AE0
NCU 572.2    6FC5357-0BB21-0AE1
NCU 572.2    6FC5357-0BB52-0AE0
NCU 572.3    6FC5357-0BB22-0AE0
NCU 572.3    6FC5357-0BB23-0AA0
NCU 572.3    6FC5357-0BB23-0AA1
---------------------------------------------                     
NCU 572.4    6FC5357-0BB23-0AE0
NCU 572.4    6FC5357-0BB24-0AA0
NCU 572.5    6FC5357-0BB25-0AA0
NCU 573.2    6FC5357-0BB31-0AE0
NCU 573.2    6FC5357-0BB33-0AE0
NCU 573.2    6FC5357-0BB33-0AE1
NCU 573.2    6FC5357-0BB53-0AE1
---------------------------------------------
NCU 573.3    6FC5357-0BB33-0AE2
NCU 573.3    6FC5357-0BB33-0AE3
NCU 573.3    6FC5357-0BB33-0AA0
NCU 573.3    6FC5357-0BB33-0AA1
NCU 573.4    6FC5357-0BB34-0AA0
NCU 573.4    6FC5357-0BB34-0AE0
NCU 573.4    6FC5357-0BB34-0AE1
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NCU 573.5    6FC5357-0BB35-0A