What lands on the rail
The ABB 1SAP250100R0001 is the AX521 analog I/O module from the distributed automation line — a mixed slice carrying 4 analog inputs that accept voltage, current, RTD or digital signals and 4 analog outputs that drive voltage or current loops. Resolution on the analog input side is 13 bit, so the AX521 sits in the mid-accuracy bracket of the family — fine for general process loop reads and thermocouple-class RTDs, not the slot you'd pick for laboratory-grade measurement. The housing is rated IP20, which means the module is built to live on the DIN rail inside the cabinet, not out in the field; pair it with the right TU5xx terminal unit for wiring and the protection class follows the cabinet, not the module.
Compliance pack the broker needs
ABB declares the module compliant with EU Directive 2011/65/EU and Amendment 2015/863 of 22 July 2019 for RoHS, and a REACH declaration is on file dated 2024-12-06 with the SCIP identifier 0d69c80f-295f-4f16-9ae7-ddf176ee5ad5 registered for Germany. The part is classified under CN8 85389091 for customs and falls in WEEE Category 5 (small equipment, no external dimension over 50 cm) with a Business-To-Business take-back posture — the documentation an independent desk or broker will ask for before shipping cross-border.