ABB TU551-CS31 Interface Terminal Unit

Description

The ABB TU551-CS31 Interface Terminal Unit is an expansion interface module belonging to the ABB AC500 product series, with the official order number 3ABD10066537. As an imported, non-customizable industrial automation component, it is designed to extend connectivity and interface capabilities within compatible control systems, aligning with the CS31 communication protocol for reliable data transfer and integration. Part of ABB’s TU500 series of I/O terminal units, it is engineered to work seamlessly with industrial control and automation setups, supporting the expansion of system I/O or communication interfaces to meet the needs of complex industrial applications. The unit is a new, original component, not intended for cross-border export-specific supply chains, and is optimized for use in standard industrial environments where robust, standardized interface expansion is required. While detailed technical parameters such as operating voltage, input/output point counts, and frequency ratings are not specified, its classification as an AC500 series module confirms its compatibility with ABB’s AC500 programmable logic controller (PLC) systems, making it a suitable choice for industrial automation, process control, and machinery control applications that demand scalable, reliable interface expansion.