ABB TB523-2ETH Terminal Base

Description

The ABB TB523-2ETH Terminal Base is an industrial automation component categorized as a low-frequency connector cable assembly, designed for use with DCS and PLC systems. As a terminal base module, it provides interface and connection support for industrial control equipment. While direct technical data for the TB523-2ETH is limited, it shares design lineage with the closely related ABB TB521-ETH Terminal Base, which offers comparable functional and mechanical specifications. The TB521-ETH is engineered for compatibility with the AC500 V2 control platform, featuring 2 slots for communication modules, an Ethernet interface, and 2 serial RS232/RS485 interfaces for multi-protocol data transmission. It has a net weight of 0.186 kg, with dimensions of 28 mm in depth/length, 135 mm in height, and 123.5 mm in width. Like its counterpart, the TB523-2ETH is built to meet strict electrical safety standards for extra-low voltage circuits; its 24V DC power supply, communication interfaces, I/O circuits, and connected devices require power sources that comply with SELV, PELV, Class 2, limited voltage, or limited power requirements per applicable industry standards, ensuring reliable operation in industrial control environments.