Terminal Base TB523-2ETH
The ABB 1SAP112300R0277 TB523-2ETH terminal base adds two communication module slots to a PM591-2ETH PLC, plus two Ethernet interfaces and one RS232/RS485 serial port. IP20 rated and DC-powered, it fits standard cabinet environments where auxiliary communication channels are needed.
Compliance and Documentation
RoHS compliant per EU Directive 2011/65/EU and REACH registered (SCIP number 68872853-abb0-4fd1-8a3e-390555c28bf4). For import/export classification, the CN8 code is 85389091.
Connectivity Layout
Two expansion slots accept standard ABB communication modules, keeping the CPU's onboard ports free for other connections. The serial interface supports both RS232 and RS485. IP20 protection restricts installation to dry indoor panels; no washdown exposure.