The Siemens 3VA9114-0JB10 is a SENTRON wire connector designated TA1.0, sold as a pack of four units. It's an accessory for the 3VA1 100/160 molded-case circuit breaker frame — the terminal set you need when landing larger conductors on that breaker family.
Terminal ratings and wire range
This connector accepts solid copper from 14 AWG up to 10 AWG, and stranded copper from 14 AWG up to 8 AWG. For aluminum conductors, it handles solid 12–8 AWG and stranded 12–8 AWG. The strip length is 12.2 mm — that's the bare-wire length you need to prep before insertion.
