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2-year Warranty

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Schneider Electric TM251MESC

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2 Year warranty

Part NumberTM251MESC
ManufacturerSchneider Electric
Warranty2 Year
RangeModicon M251
CategoryLogic controller
Local signallingfor PWR 1 LED (green)
for RUN 1 LED (green)
for module error (ERR) 1 LED (red)
for I/O error (I/O) 1 LED (red)
for SD card access (SD) 1 LED (green)
for BAT 1 LED (red)
for Ethernet port activity 1 LED (green)
for SL 1 LED (green)
for bus fault on TM4 (TM4) 1 LED (red)
for CANopen run 1 LED (green)
for CANopen error 1 LED (green)
Supply voltage24 V DC
Supply voltage limits20.4…28.8 V
Inrush current50 A
Memory capacity8 MB program 64 MB system memory RAM
Maximum number of I/O expansion module7 (local I/O-Architecture) 14 (remote I/O-Architecture)
Power consumption in W32.6…40.4 W with max number of I/O expansion module)
Battery typeBR2032 lithium non-rechargeable 4 year(s)
Application structure3 cyclic master tasks + 1 freewheeling task 8 event tasks 4 cyclic master tasks 8 external event tasks
Communication port protocolUSB port USB - SoMachine-Network Non isolated serial link Modbus master/slave - RTU/ASCII or SoMachine-Network
Port EthernetEthernet 10BASE-T/100BASE-TX - 2 copper cable
Communication serviceDHCP client Downloading Ethernet/IP slave device IEC VAR ACCESS Modbus TCP client Modbus TCP server Modbus TCP slave device Monitoring NGVL Programming Updating firmware SMS notifications FTP client/server SNMP client/server SQL client Send and receive email from the controller based on TCP/UDP library Web server (WebVisu & XWeb system) OPC UA server DNS client
Height3.54 in
Width2.13 in
Depth3.74 in
Net Weight0.49 lb

Our Repair Services

MRO Electric repairs CNCs, PLCs, Servo/Spindle Drives, Motors, Amplifiers, VFDs, HMIs, and more, most of which can be repaired in only 3-5 days.

Repair Benefits

MRO can restore your failed TM251MESC to remanufactured condition and save you up to 75% compared to buying new. We offer standard repair pricing to ensure you the best value for your repair.

Our certified technicians use rigorous testing procedures to ensure your parts are restored to fully functioning condition. Our team proudly stands behind all repairs by providing a minimum 2-year warranty.

Our technicians have vast experience with most manufacturers and models. In addition to this TM251MESC we also repair drives, motors, PLCs and more, so if you don’t see the model you need, please contact us.

Core Exchange

If you are interested in getting credit for your faulty TM251MESC, just let us know, and we can issue you an RMA to send it in as an exchange. Our exchange program provides you with savings and keeps us stocked for the next time you need anything.

  • Shipping Weight : 2lbs

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  • Order within the next 9 hours and 27 minutes.
  • If you order between 4pm and 6pm EST, you will be charged a small rush fee.

Ask about exchanging your faulty TM251MESC for credit when ordering from MRO Electric

MRO Electric provides a 2-year warranty on every item we sell and repair. We stand behind all of our products and guarantee them for the full 2 years. If there is an issue with any of our products within the warranty period, we will evaluate the unit and repair or replace it under warranty.

Schneider Electric TM251MESC Overview

Schneider Electric TM251MESC: Empowering Automation with Precision

In the realm of industrial automation, the Schneider Electric TM251MESC emerges as a powerhouse logic controller, a key component of the Modicon M251 series. This Ethernet CAN controller seamlessly blends advanced functionality with a robust design, offering a reliable solution for diverse industrial applications.

Key Specifications:

  • Product Type: Logic Controller
  • Supply Voltage: 24 V DC
  • Power Consumption: 32.6…40.4 W (with max number of I/O expansion modules)
  • Memory Capacity: 8 MB program, 64 MB system memory RAM, 128 MB built-in flash memory backup
  • Backup Time: 2 years at 77 °F (25 °C)
  • Communication Ports: USB, Serial (RS232/RS485), Dual-port Ethernet RJ45, CANopen J1939 SUB-D 9
  • Transmission Rate: 1.2...115.2 kbit/s (RS232/RS485), 480 Mbit/s (USB)
  • Web Services: Web server, DHCP client, Ethernet/IP slave device, IEC VAR ACCESS, Modbus TCP client/server, SNMP client/server, and more.
  • Maximum Connections: 8 Modbus server, 8 Modbus client, 16 Ethernet/IP target, 4 FTP server, 10 web server, 8 SoMachine protocol
  • Certifications: cULus, CSA, Marine specifications (LR, ABS, DNV, GL), UL 1604, UL 508

FAQs - Schneider Electric TM251MESC:

Q1: What is the TM251MESC's primary function?

A1: The TM251MESC is a logic controller designed for industrial automation, offering precise control over various processes.

Q2: How is data storage handled in TM251MESC?

A2: The controller comes equipped with 128 MB built-in flash memory for user program backup, and additional storage options include an optional SD card (up to 16 GB).

Q3: What communication protocols does TM251MESC support?

A3: TM251MESC supports various protocols such as Modbus master/slave (RTU/ASCII), SoMachine-Network, Modbus TCP, Ethernet/IP, and more.

Q4: What certifications does TM251MESC hold?

A4: The controller holds certifications including cULus, and CSA, and complies with standards like ANSI/ISA 12-12-01 and EN/IEC 61131-2:2007.

Q5: How does TM251MESC ensure reliability in harsh environments?

A5: With a surge withstand of 1 kV for shielded cable common mode and resistance to electrostatic discharge and electromagnetic fields, TM251MESC is built to thrive in challenging conditions.


The Schneider Electric TM251MESC stands as a testament to precision and reliability in industrial automation. With its robust features, extensive connectivity options, and certifications, it empowers businesses to streamline operations and enhance overall efficiency.

Schneider Electric products are manufactured in France and are designed for Material handling, packaging, and textile machines usage. They come with a 2-year warranty from MRO Electric. We also carry Communications from other manufacturers such as Modicon and ABB.

Contact Us Today For More Information About Schneider Electric Products

Check out the rest of our Schneider Electric product line. Whether it's using our online instant quote feature, giving us a call at (800) 691-8511, or emailing us at, we strive for customer satisfaction first. This means lower prices and better service for you. For more products like TM251MESC, take a look at more from our Communications line. If your current unit has gone bad, take advantage of our Core Exchange program for the most inexpensive route. You can learn more about this program on our FAQ page here. We offer a repair service on all of our TM251MESC products that keep your downtime to a minimum. To stay up to date on manufacturer news, as well as access any of our datasheets, manuals, or other documentation, we suggest you take a look at our blog.

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Over 1700 Ratings from Actual Customers

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Very happy with the overall service, delivery, communication and delivery,

Conley Cooke

I needed a special drive, found it, and I was quickly assisted by Joe Kaminski. Everything was exactly as it should be....


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