What you're specifying
The ABB 1SFA897113R7000 is the PSE250-600-70 softstarter, rated for 208 … 600 V AC on the main circuit with a 100 … 250 V AC control supply at 50/60 Hz. Main-circuit power lands on bus bars rather than tunnel lugs or screw terminals, which is the form factor you'd expect at this current class — it sets the cable prep (lugs, heat-shrink, shrouding) and the cabinet depth more than the part number does. The unit weighs 13.9 Kg against a 16 Kg shipping weight in a 23.65 cm × 19 cm × 55 cm enclosure, so it's a two-person lift into a wall-mounted section and the cabinet should be sized for the depth before the wiring diagram is even printed.
What the ratings actually decide
Main terminals are IP00 to IEC 60529 / IEC 60947-1, meaning the power side is exposed at the bus bars; the cabinet or a terminal shroud has to deliver the IP54 the application usually expects — don't assume finger-safe because it's a modern softstarter. A 4 … 20 mA analog output is present, so the unit can mirror motor current to a DCS or PLC analog input without the fieldbus plug — useful when the panel is hard-wired. The fieldbus plug is listed as optional rather than included, so an order expecting Modbus TCP or PROFIBUS out of the box needs the plug quoted separately and the comms protocol called out at RFQ time.
Where this class sits
Softstarters in this current class typically sit ahead of a squirrel-cage induction motor on a conveyor, mixer, crusher or large pump where a direct-on-line start would trip the supply or shock the driven load.
Frame sizing against the PSR peers
The PSR85 and PSR105 peers also move the control supply down to 100 … 240 V AC (or 24 V AC/DC on PSR105), so the control wiring on the door would change and the fieldbus plug footprint wouldn't necessarily line up.