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2-year Warranty

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Schneider Electric 140CPU43412

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MANUFACTURER: Schneider Electric 

DESCRIPTION: Processor 486K RAM 2MEG 2xMB, 1xMB

PRODUCT TYPE INFO: Modicon Quantum

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2 Year warranty

Part Number140CPU43412
ManufacturerSchneider Electric
Model #140-CPU-434-12
Warranty2 Year
RangeModicon Quantum automation platform
SoftwareProWORX 32
Clock Frequency66 MHz
Clock Drift+/-8 s/day at 0…60 °C
Processor Name80486
MemoryInternal RAM 896 kB
Watchdog Timer250 ms
Drops/Network63 distributed
Communication Module Processor Capacity6 NOM, NOE, CR, NMS
I/O Words30 I/32 O distributed 64 I/64 O max local 64 I/64 O remote
Bus Current Requirement1250 mA
Ports1 Modbus Plus 2 Modbus RS232
Switch FunctionKey switch
Network2 remote 3 distributed
Battery Capacity1.2 Ah
Battery TypeLithium 7 µA 210 µA
Ambient Air Temp0…60 °C
Operating Altitude<= 5000 m
CertificationsFM Class 1 Division 2 cUL
StandardsUL 508 CSA C22.2 No 142

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 140CPU43412 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 140CPU43412 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 140CPU43412, 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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Ask about exchanging your faulty 140CPU43412 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 140CPU43412 Overview

Revolutionizing Automation: Modicon Quantum 140CPU43412 Processor

Embrace the power and efficiency of the Modicon Quantum automation platform with the 140CPU43412 Processor, a key component designed to elevate industrial automation. This processor, accompanied by ProWORX32 and Concept software, brings a robust combination of speed, memory, and connectivity to the forefront of your automation endeavors.

Powerful Processing with 80486:

  • At the heart of the 140CPU43412 Processor lies the 80486 processor, ensuring a robust and efficient execution of automation tasks. With a clock frequency of 66 MHz, this processor stands ready to handle complex instructions with ease.

Comprehensive Software Support:

  • Seamlessly integrated with ProWORX32 and Concept software, the 140CPU43412 Processor facilitates intuitive programming and configuration. This comprehensive software suite empowers users to unleash the full potential of the Modicon Quantum automation platform.

Generous Internal RAM:

  • Boasting an internal RAM of 896 kB, the processor provides ample space for data storage and execution of tasks. This generous memory capacity ensures the smooth and efficient operation of automation processes.

Precise Time Control:

  • Time-sensitive applications find a reliable ally in the 140CPU43412 Processor. With an exact time requirement of 0.1 to 0.5 ms per instruction (LL984), this processor ensures precise control of your automation sequences.

Built-in Watchdog Timer:

  • Enhancing reliability, the processor features a watchdog timer with a duration of 250 ms. This safeguard mechanism ensures the continuous monitoring of the system, promptly responding to any anomalies.

Extensive I/O Capabilities:

  • The processor offers an array of I/O options, supporting 30 inputs and 32 outputs in distributed configurations, and up to 64 inputs and 64 outputs locally or remotely. This flexibility allows for seamless integration with diverse automation setups.

Network Connectivity:

  • Facilitating communication across your automation network, the 140CPU43412 Processor supports 500 I/O words in distributed configurations, with 63 drops in a network and up to 31 remote drops. This expansive connectivity ensures a well-connected and coordinated automation system.

Long-lasting Lithium Battery:

  • Powered by a Lithium battery with a capacity of 1.2 Ah, the processor boasts an impressive battery life of 10 years. This reliable power source ensures uninterrupted operation over an extended period.

Modular Communication Modules:

  • The processor features multiple communication modules, including 1 Modbus Plus and 2 Modbus RS232 ports. This versatility enhances communication capabilities, allowing seamless integration with a variety of devices.

Durable Design and Certification:

  • Designed for industrial environments, the 140CPU43412A Processor adheres to industry standards. With certifications including FM Class 1 Division 2, cUL, UL 508, and CSA C22.2 No 142, it ensures safety and reliability in diverse applications.

Robust Environmental Tolerance:

  • Operating flawlessly in challenging environments, the processor handles a wide ambient air temperature range from 0 to 60°C during operation and can be stored in temperatures ranging from -40 to 85°C.

Frequently Asked Questions 

1. What is the primary role of the 140CPU43412 Processor in the Modicon Quantum automation platform?

  • The 140CPU43412 Processor serves as a crucial component in the Modicon Quantum automation platform, responsible for processing automation tasks and facilitating seamless communication within the network.

2. Which software is compatible with the 140CPU43412 Processor for programming and configuration?

  • The processor is compatible with ProWORX32 and Concept software, providing a comprehensive suite for programming and configuring automation processes.

3. What is the clock frequency of the processor's 80486 core?

  • The processor features an 80486 core with a clock frequency of 66 MHz, ensuring powerful and efficient execution of automation tasks.

4. How much internal RAM does the 140CPU43412 Processor have?

  • The processor boasts an internal RAM capacity of 896 kB, providing ample space for data storage and task execution.

5. Is the processor suitable for time-sensitive applications?

  • Yes, the processor is equipped with precise time control capabilities, with an exact time requirement of 0.1 to 0.5 ms per instruction (LL984), making it suitable for time-sensitive automation applications.

6. Does the processor have a built-in watchdog timer?

  • Yes, the processor includes a watchdog timer with a duration of 250 ms, enhancing system reliability by continuously monitoring and responding to anomalies.

7. How many I/O options does the processor support?

  • The processor supports extensive I/O options, including 30 inputs and 32 outputs in distributed configurations, and up to 64 inputs and 64 outputs locally or remotely.

8. What network connectivity options are available with the 140CPU43412A Processor?

  • The processor supports 500 I/O words in distributed configurations, with 63 drops in a network and up to 31 remote drops, ensuring comprehensive connectivity in automation networks.

9. What is the battery life of the Lithium battery used in the processor?

  • The processor is powered by a Lithium battery with a capacity of 1.2 Ah, providing a battery life of 10 years for uninterrupted operation.

10. Which certifications does the 140CPU43412 Processor hold, and what environmental conditions can it withstand?

  • The processor holds certifications including FM Class 1 Division 2, cUL, UL 508, and CSA C22.2 No 142, ensuring safety and reliability. It can operate in an ambient air temperature range of 0 to 60°C and be stored in temperatures ranging from -40 to 85°C.

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 CPUs 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 140CPU43412, take a look at more from our CPUs 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 140CPU43412 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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