Siemens 6FC5373-0AA01-0AA1 SINUMERIK 840D sl NCU Control Unit 24 VDC
Siemens 6FC5373-0AA01-0AA1 SINUMERIK 840D sl NCU Control Unit 24 VDC
Part number 6FC5373-0AA01-0AA1
Also written as 6FC53730AA010AA1·6FC5 373-0AA01-0AA1
1 left in stock
The Siemens 6FC5373-0AA01-0AA1 is a SINUMERIK NCU 730.2PN numerical control unit with integrated PLC319-3PN/DP, for the SINUMERIK 840D sl CNC system. The NCU runs the NC, drive-bus and PLC functions of the control and connects to the machine over PROFINET and PROFIBUS DP. Programs and data are held on a CompactFlash card in the front slot. Label data shows hardware Version A with software release (V-Stand) 01.06.00, which should be matched against the software and CF card of the machine it replaces. The unit runs from a 24 VDC supply at 9.4 A. Also searched as 6FC53730AA010AA1.
Specifications
| Manufacturer | Siemens |
| Part number | 6FC5373-0AA01-0AA1 |
| Product | SINUMERIK NCU 730.2PN |
| Integrated PLC | PLC319-3PN/DP |
| System | SINUMERIK 840D sl |
| Supply voltage | 24 VDC |
| Supply current | 9.4 A |
| Digital outputs | 24 VDC, 0.5 A |
| Ambient temperature (Ta) | 0...55 °C |
| Version | A |
| V-Stand (software release) | 01.06.00 |
| Serial / S number | T-V62076717 |
| Order/assembly code | A5E00484618 |
| Assembly K1 | A5E00477325 B |
| Assembly A2 | A5E00492239 A |
| Assembly A3 | A5E00782718 A |
| Assembly M0 | A5E00484618 C |
| Additional code | A5E00754872 01.00.03 |
| Label sticker | T-V7891300 |
| Approvals | CE, UL Listed IND CONT EQ 58RA |
| Origin | Made in Germany |
| Enclosure | Rack-style sheet-metal housing, card-cage construction |
| Cooling | Side-mounted heatsink / fan section |
| Storage slot | CompactFlash (CF) card slot with eject lever |
| Front indicators | LEDs RDY, RUN, STOP, SU/PF, SF, DP1, DP2, OPT |
| Front controls | Rotary address/ID switches, RESET button |
| Display | 7-segment BOP display |
| Front Ethernet | RJ45 port X127 |
| Ethernet switch block | 4 x RJ45 with status LEDs |
| Additional Ethernet | 2 x RJ45 (X120, X130) |
| D-sub ports | 2 x 9-pin (X136, X126) |
| USB | 2 x USB type-A, stacked |
| Terminal block | Orange-tabbed screw/ribbon terminal block |
| Power connector | 2-pin |
| Mounting | Mounting tabs, ground lug with two screws |
| Condition | Used-Tested |
| Warranty | 14-30 days depend on the parts |
Condition & testing
Used unit, tested. Light surface grime on the housing; no major physical damage visible. Front panel, rear connector area, mounting tabs and ground lug are intact. Label data is legible and listed in the specifications.
Compatibility
SINUMERIK 840D sl
What's included
1 x Siemens SINUMERIK NCU 730.2PN, 6FC5373-0AA01-0AA1.
Before you order
- Check the software release (V-Stand 01.06.00) and hardware Version A against the unit being replaced; the NCU software must match the machine's system software.
- Machine data, PLC project and licences from the old NCU must be transferred; they are held on the CompactFlash card and system licence, not in this housing.
- Confirm the NCU variant: 730.2PN with PLC319-3PN/DP, which differs from other NCU 7x0 types.
- The 24 VDC supply must provide the 9.4 A rating shown on the label.
Compatible & Related
FAQs
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What payment methods can I use?
We accept all major credit cards (Visa, Mastercard, American Express), PayPal, and bank transfers for B2B orders. For large industrial orders, we also offer invoice payment with NET-30 terms for verified business customers.
Are the parts on your website tested and genuine?
Yes. Every part sold by Samonde is professionally tested by our technicians in Tallinn before shipping. We source directly from decommissioned industrial equipment, authorized distributors, and certified surplus stock. Each item comes with a functionality warranty.
Do you offer warranties on industrial spare parts?
Absolutely. All parts come with a minimum 14-30 day warranty. Many items, especially Siemens and Heidenhain components may have include extended 90-day coverage (depends on the parts). If a part fails during the warranty period, we offer replacement or full refund.
Can you source a part that is out of stock?
Yes. If you need a specific Siemens, Heidenhain, Fanuc, or other industrial part that is currently out of stock, contact us with the part number. Our sourcing team across Europe can usually locate hard-to-find automation components within 5-10 business days.
How do I know I'm ordering the correct part for my machine?
Each product listing includes the exact manufacturer part number (MPN), compatibility notes, and photos of the actual item. If you are unsure, send us your machine model and part number via the Contact page or WhatsApp, and our engineers will verify compatibility before you purchase.
Do you ship internationally outside the EU?
Yes. Samonde ships worldwide from our EU warehouse. We offer UPS and DHL Express and standard freight options to North America, Asia, Middle East, and South America. All shipments include tracking and customs documentation.
Siemens 6FC5373-0AA01-0AA1 SINUMERIK 840D sl NCU Control Unit 24 VDC