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TU531 forms the terminal base for supported ABB AC500 relay I/O modules used with 120/230 V AC field circuits.
Circuit review should cover isolation, protective devices, terminal mapping, load type, inrush, suppression, conductor separation, and safe service access.
Procurement should verify 1SAP217200R0001 and the installed relay module because TU531 and TU532 differ in field-connection method.
ABB TU531 Relay I/O Terminal Unit Manuals, Datasheets, Links
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
ABB TU531 Relay I/O Terminal Unit Specs
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Supported module review
AC conductor review
Safety and commissioning
The ABB TU531 is an AC500 terminal unit for supported 120/230 V AC relay I/O modules, identified by 1SAP217200R0001.
Official documentation for TU531 specifies screw field terminals and the electrical and mechanical data for the TU531/TU532 terminal-unit family.
Before ordering 1SAP217200R0001, verify the plug-in relay module, circuit voltage, screw-terminal requirement, conductor map, and protective design.





