ABB TB521-ETH Terminal Base

Description

The ABB TB521-ETH Terminal Base is a PLC automation component designed for the AC500 V2 platform. It features a compact form factor with dimensions of 28 mm in depth, 135 mm in height, 123.5 mm in width, and a net weight of 0.186 kg. Equipped with 2 slots for communication modules, it supports flexible integration of additional communication components. Key connectivity features include an Ethernet interface and 2 serial interfaces (RS232/RS485), enabling reliable data exchange across multiple device types. For electrical safety, the unit requires 24V DC power, communication interfaces, I/O circuits, and connected devices to be powered by sources meeting SELV, PELV, class 2, limited voltage, or limited power requirements per applicable standards, ensuring protection for ultra-low voltage circuits in AC500 and AC500 eCo systems. It is designed for DIN rail mounting for easy installation in industrial control setups. Ideal applications include seamless connection and communication in industrial automation systems, building automation control and management, energy management monitoring and control, transportation equipment control and communication, and data collection and transmission for environmental monitoring systems.