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Most orders ship within 1–2 business days via UPS. Larger equipment ships via freight carrier, and customers can use the shipping estimator on the product page for a location-specific quote. Local pickup is also available at the Fairfield, IL facility, typically ready within 4 hours.

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MRO Exchange accepts all major credit cards, PayPal, and Shop Pay. Purchase order and wire transfer payment is also available, with payment due prior to shipment. Custom terms are available for established accounts.

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Siemens 6FC5312-0DA00-0AA2 Thin Client Unit 24V DC

$1,500.00 USD

Sale Sold out

ConditionSurplus - Untested MPN6FC5312-0DA00-0AA2 Stock #0226-00046

Photos reflect current condition. Items differing from description may be eligible for return or refund — see our condition guide.

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Estimated package weight: 10.0 lbs

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The Siemens 6FC5312-0DA00-0AA2 is a SINUMERIK TCU 20.2 thin client unit designed for use with SINUMERIK and SIMOTION CNC platforms. This module functions as the operator panel front (Bedientafelfront) interface, providing the connection point between the operator panel hardware and the underlying NCU or PCU computing platform in a distributed CNC architecture. The TCU 20.2 is commonly deployed on SINUMERIK 840D and 840D sl control systems, where it handles display rendering and operator input forwarding over the system network.

Nameplate data confirms a supply voltage rating of 24 VDC at 1.9 A and an ambient operating temperature range of 0 to 55 degrees Celsius. The unit carries cUL Listed Industrial Control Equipment certification (file marking 58RA), CE marking, EAC, and KCC REM S49 SINUMERIK approvals. Manufacturing data on the nameplate indicates date code 04/2019, factory serial LBL3507839, and assembly identifier A5E03735114. The internal firmware and component revision table on the nameplate lists A5E03687016 (revision G), A5E33869485 (V09.06.00.00), A5E03820482 (V01.00.00.00), and A5E35495382 (V04.50.62.00).

The shipping carton is marked with the Siemens part number 6FC5312-0DA00-0AA2 and matches the labeled MPN on the device nameplate. The TCU 20.2 is part of the SINUMERIK Operate distributed HMI architecture and is intended as a panel front computing module on networked SINUMERIK CNC installations. Compatible with SINUMERIK 840D, 840D sl, and SIMOTION host platforms. Manufactured in Germany by Siemens AG, Erlangen.

Stock # 0226-046

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Frequently Asked Questions

Shipping & Handling

Most orders ship within 1–2 business days via UPS, but expedited same-day handling is available as an add-on to orders in cart. Larger equipment ships via freight carrier. Use the shipping estimator above for a location-specific quote. Local pickup is also available at our Fairfield, IL facility, typically ready within 4 hours.

Returns & Condition

All items are sold as-described based on the photos and condition listed. If an item arrives differing from its description, it may be eligible for return or refund. See our full condition guide for details on our grading terms.

Payment Options

We accept all major credit cards, PayPal, and Shop Pay. Purchase order and wire transfer payment is also available by selecting "Purchase Order / Wire Transfer" at checkout. Payment is due prior to shipment. Contact us for custom terms on established accounts. Tax exemptions are honored if proper documentation is provided.