Wire range and termination details
The 3VA9483-0JC23: Stripped length is listed as 1.2 / 2.3 in — the shorter figure likely for the control tap, the longer for the main conductor pocket. The connector handles both stranded and finely stranded copper, plus aluminum, all within the same 2/0–600 kcmil range. That means one part number covers the bulk of service-entrance and feeder sizes you'd land on a 400–630 A frame breaker.
The lifecycle status is current (Active). No end-of-life or phase-out notice is on record.