What you're kitting
The XK08F1A3.0: The ABB XK08F1-A3.0 is an analog input / output extension module in the XK08F1 series, the slice a PLC backplane reaches for when it needs a small mixed-signal island without adding a full CPU rack. It carries four analog inputs and four relay outputs in the same housing — the AI side reads 0 to 24 V DC at 5 mA per channel, and the AO side is implemented as four relay contacts rather than proportional analog outputs. The relay contacts are rated for 24 V DC alongside 120 / 230 V AC at 2 / 8 A across 50 to 60 Hz, so a single module can switch indicator lamps, solenoid coils, and small contactor coils from the same set of terminals.
Where it sits in the BOM
As an expansion module under the PLCs & HMIs / PLC Expansion Modules category, the XK08F1-A3.0 hangs off a host controller and inherits its fieldbus or backplane addressing — the listed ratings are the channel-level envelope, not a communication profile. For a kitting lead, the relevant checklist is short: four AI channels at 0 to 24 V DC / 5 mA, four relay outputs at the 2 / 8 A mix, an IP20 housing, and an upper ambient of 55 °C. Anything beyond that — backplane connector, terminal plug kit, labeling strip — falls outside what this listing carries on its face, so the carton contents need a hands-on check before the kit ships to site.
Sourcing posture
The line is offered used, flagged under shelf number 241224, which frames the supply as quoted-to-order against an RFQ rather than a fresh factory pull.