Product Description
The ABB CT 5536a is a robust and reliable current transformer designed for accurate measurement of AC current in various industrial and commercial applications. This transformer offers a high degree of precision, ensuring dependable readings for monitoring and control systems. It features a durable construction, suitable for demanding environments, and provides galvanic isolation between the primary and secondary circuits, enhancing safety. The CT 5536a is engineered for easy installation and integration into existing setups, delivering consistent performance and long-term stability. Its specifications meet stringent industry standards, guaranteeing compatibility and adherence to required safety protocols. This current transformer is a critical component for effective power management and protection.
Is Your Device Showing These Signs?
ABB CT5536A current transformers commonly exhibit issues such as saturation due to excessive primary current, leading to inaccurate secondary readings and compromised protection relay operation. Insulation breakdown, often caused by environmental factors or aging, results in dielectric failure and potential short circuits. Core magnetization from DC components in the AC signal introduces errors in measurement. Open or shorted secondary windings prevent proper signal transmission to metering or protection devices. Calibration drift necessitates recalibration to maintain accuracy and adherence to specifications.
Technical specifications
The ABB CT 5536a is a high-performance, programmable logic controller (PLC) designed for complex automation applications requiring precise control and robust reliability. This PLC features a powerful processor capable of executing advanced control algorithms and managing extensive I/O configurations. It supports a wide range of communication protocols, including Ethernet/IP, Modbus TCP/IP, and Profinet, facilitating seamless integration with existing industrial networks and supervisory control systems. The CT 5536a offers a modular design, allowing for flexible expansion and customization to meet specific application needs, with hot-swappable modules ensuring minimal downtime during maintenance or upgrades. Integrated safety features, compliant with industry standards, provide enhanced protection for personnel and equipment. The PLC is programmed using ABB's Automation Builder software, a comprehensive engineering tool that simplifies configuration, programming, and diagnostics.
Our Repair Process for the
CT 5536a
Our repair process for ABB CT5536A current transformers begins with a thorough inspection to diagnose saturation, insulation breakdown, core magnetization, winding issues, or calibration drift. Saturation is addressed by optimizing the transformer's burden or replacing it with a higher-rated unit. Insulation breakdown requires replacement or high-potential testing and re-insulation of affected components. Core magnetization is rectified through demagnetization procedures. Open or shorted secondary windings necessitate rewinding or component replacement. Calibration drift is corrected by recalibrating the transformer to meet original specifications, ensuring accurate and reliable performance.
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.

















