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Product description
Powered by a 24-V-DC supply, the Siemens 6FC5372-0AA30-0AB0 serves as a Numerical Control Unit in the SINUMERIK 840D sl series. This exact version is designated NCU 720.3B PN and integrates a PLC 317-3 PN/DP. The module therefore combines numerical control, PLC functions and communication within the associated control architecture. A twin fan module is part of the documented device configuration; undocumented software versions or application-specific option releases are not assumed. The electrical data specifies a maximum power consumption of 352 W and a power loss of 24 W. Memory capacity comprises 2 GB DRAM and 1 GB NVM. The PN designation identifies the integrated PROFINET connection, while the built-in PLC also provides PROFIBUS DP. The enclosure is classified as IP20 / UL Open Type, and CE and cULus are listed as approvals. Dimensions of 50 × 455 × 272 mm and a net weight of 3.9 kg allow the specific mechanical format to be checked before ordering. The documented operating temperature range is 0 to 55 °C, with −25 to 55 °C for storage and −40 to 70 °C for transport. Relative humidity is specified as 5 to 95 percent in all three cases, excluding condensation and icing. The complete article number, NCU version and integrated PLC designation jointly define the technical identity of this module.
Example image – The item supplied will have the stated manufacturer or type number and the stated condition category. Serial number, manufacturing date, labels, colour, packaging and normal signs of use or storage may differ. Specifications
| Manufacturer | Siemens |
|---|---|
| Product series | SINUMERIK 840D sl |
| Manufacturer / order / identification number | 6FC5372-0AA30-0AB0 |
| Device type | Numerical Control Unit (NCU) |
| NCU version | NCU 720.3B PN |
| Integrated PLC | PLC 317-3 PN/DP |
| Supply voltage | 24 V DC |
| Maximum power consumption | 352 W |
| Power loss | 24 W |
| Working memory | 2 GB DRAM |
| Non-volatile memory | 1 GB NVM |
| Communication | PROFINET and PROFIBUS DP |
| Fan module | Twin fan module included |
| Degree of protection | IP20 / UL Open Type |
| Operating temperature | 0 to 55 °C |
| Approvals | CE, cULus |
| Dimensions | 50 × 455 × 272 mm (W × H × D) |
| Weight | 3.9 kg |
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Which controller is integrated in the Siemens 6FC5372-0AA30-0AB0?
The NCU 720.3B PN contains a PLC 317-3 PN/DP and brings PROFINET and PROFIBUS DP communication together in the SINUMERIK-840D sl module.
What are the dimensions of the NCU 720.3B PN?
Dimensions of 50 × 455 × 272 mm and a net weight of 3.9 kg are documented for the complete article number 6FC5372-0AA30-0AB0.
What applies if an item develops a defect within 14 days?
For the condition categories “Used, removed from an installation” and “New, old stock”, the contractual 14-day right of return in the event of a defect applies. The defect must occur within 14 calendar days after delivery and be reported in text form within the same period.
In particular, the REHA tamper-evident seal must remain fully intact and our RMA approval is required before return. In an accepted case, we decide between replacement and refund. Details in Section 11 of the Terms.
Which shipping methods and delivery times are available?
The shipping method, shipping cost and estimated delivery time are confirmed for the specific order. Depending on the item, destination and urgency, we can check parcel, express or freight shipping as well as collection.
A delivery date is binding only if we expressly confirm it as binding.
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The payment terms stated in the checkout or order confirmation apply. Depending on the order and customer, payment is made in advance or against invoice.
International deliveries and deliveries to new customers are generally made against advance payment unless we expressly confirm another payment arrangement.
Can I return an item ordered incorrectly or found incompatible?
No. There is no general B2B right of return, exchange, cancellation or withdrawal. Incorrect or duplicate orders and a lack of suitability or compatibility with the customer’s installation are not covered by the contractual 14-day right of return in the event of a defect. Details in Section 12 of the Terms.
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