ABB 1SAP210800R0001 DIN Rail Mounted Bus Terminal Unit

ABB's TU510 interface terminal unit, part number 1SAP210800R0001, is a DIN-rail mounted bus-terminal module designed for ABB's S500/AC500 control family. It provides a serial-protocol interface using a 9-pin D-sub connector (female) and front-mounted spring terminals for conductor connections, with a 24 V DC supply requirement. The unit can be mounted in horizontal or vertical orientation on a DIN rail and weighs about 200 g, delivering a compact, robust interface for data exchange between S500 modules and external devices or fieldbus networks. As the standard TU510 variant in ABB's TU509/TU510 data sheet, it serves as the serial communications interface within ABB's automation ecosystem, enabling reliable communication between controllers and connected equipment.