If you have questions about our products, Fill out the form below and we will answer any questions you have. Tips: Fields marked with*are required. ABB TU516 1SAP212000R0001 I/O Terminal Unit Introduction The ABB TU516 1SAP212000R0001 I/O terminal unit is designed for use in industrial automation systems to ensure reliable and secure connections between I/O modules. This unit enables stable signal and power transmission across v *Your Name: *Your Email: *Your Name: *Vdcode: Submit