The Siemens 3VA9163-0JA12 is a SENTRON box terminal set — three pieces of the TS1.2 design, sized for 6 to 120 mm² copper cable. It's an accessory specifically for the 3VA2 160 molded-case circuit breaker frame.
These terminals mount directly onto the 3VA2 160 breaker's line or load lugs — no adapter plate needed. The box-terminal design fully encloses the conductor, so no exposed copper past the lug, which simplifies inspection on a UL 508A panel. No control-wire tap on this terminal variant; it's a straight power connection. The 0.75 in strip length is consistent across all wire types, so the wireman can set the stripper once and run the whole feeder.