Fast Quote
ABB DI821 3BSE008550R1 provides individually isolated high-voltage digital inputs for compatible S800 I/O installations.
DI821 3BSE008550R1 is an ABB S800 I/O digital input module with eight individually galvanically isolated channels for 230 V AC or 220 V DC field signals.
ABB lists TU811, TU813, TU831, TU839 and TU851 module termination units for DI821. Each input channel is isolated individually for separate high-voltage field-signal acquisition.
Verify the complete article number, field voltage, wiring, isolation requirements and installed MTU before replacement or commissioning.





