Product Description
The ABB 70 PR 03c-E is a robust and reliable programmable logic controller designed for demanding industrial automation applications. This PLC offers exceptional performance with its advanced processing capabilities, ensuring precise and efficient control of complex systems. It features a wide range of communication interfaces, enabling seamless integration with various devices and networks. The 70 PR 03c-E provides ample memory for extensive program storage and data logging, guaranteeing operational stability and data integrity. Its modular design allows for flexible expansion and customization, adapting to evolving automation needs. This PLC is engineered for durability and longevity, operating reliably in harsh environments, and is an ideal solution for optimizing industrial processes and enhancing overall productivity.
Is Your Device Showing These Signs?
ABB 70 PR 03c-E units commonly experience failures in the power supply module, leading to operational downtime. Encoder feedback issues, resulting in inaccurate positioning, demand immediate attention. Communication faults on the serial interface disrupt data transmission and control. Overheating of the IGBT modules causes performance degradation and potential damage. Resolving these issues ensures optimal performance and extends the lifespan of the ABB 70 PR 03c-E.
Technical specifications
The ABB 70 PR 03c-E is a robust, programmable protection relay designed for comprehensive power system protection and control. This relay provides advanced functionality, including overcurrent, overvoltage, undervoltage, frequency, and directional protection elements, ensuring reliable operation in diverse network configurations. It features a user-friendly interface for configuration, monitoring, and fault analysis, accessible through a local HMI and remote communication protocols such as IEC 61850. The 70 PR 03c-E incorporates sophisticated disturbance recording capabilities, capturing detailed waveform data for post-fault analysis and system diagnostics. Its modular design allows for flexible I/O customization to meet specific application requirements, with options for binary inputs, binary outputs, and analog inputs. The relay is engineered for high reliability and availability, incorporating self-supervision functions and redundant power supplies, making it suitable for critical infrastructure applications.
Our Repair Process for the
70 PR 03c-E
Our repair process for ABB 70 PR 03c-E units begins with a comprehensive diagnostic assessment to pinpoint the root cause of the failure, focusing on power supply module malfunctions, encoder feedback discrepancies, serial communication faults, and IGBT overheating. Upon identifying the issue, we proceed with component-level repairs or replacements using only ABB-approved parts, ensuring adherence to original equipment manufacturer specifications. Rigorous testing is then conducted under simulated operational conditions to validate the repair and verify optimal performance. Finally, the unit undergoes a thorough quality assurance check before being returned, guaranteeing reliable operation and extended lifespan.
Your Guarantee: Warranty & Lifetime Support
Your satisfaction is our top priority, and we confidently stand behind the quality of our repairs. That's why every repair service is covered by our comprehensive 24-month warranty. Furthermore, we offer lifetime phone support – if you have questions or need assistance related to our repair down the road, we're here to help. Our service commitment is straightforward: we guarantee our work, and if you're not satisfied, we will make it right. Learn More about our Repair process.
Comprehensive Repairs You Can Depend On
We take immense pride in the quality and reliability of our work. Our process goes beyond simply fixing the immediate problem. We perform a comprehensive inspection of your main board (or other equipment) and proactively replace components known to be failure-prone or showing signs of potential future failure. Before any item is returned, it undergoes rigorous functional testing to ensure it meets performance specifications and operates flawlessly. Visit our main Repair Services page to learn more.
Save Significantly
Our primary goal is to save you hundreds, or even thousands, of dollars compared to the cost of new equipment replacement. By repairing existing components, we provide an economical solution that is also eco-friendly. At Roc Industrial, our commitment to integrity and community drives our consistent growth and ensures you receive a reliable, cost-effective solution.

Please Note: Roc Industrial operates as an independent service provider and is not an authorized distributor for the manufacturers or brands mentioned. Consequently, the original manufacturer's warranty is not applicable to items repaired or sold by us. Roc Industrial provides its own 2-year warranty on all repair services performed.

















