What it is and where it fits
The Siemens 3VA9234-0JC22 is a TA2.3 wire connector designed for the 3VA52 molded case circuit breaker family. It accepts two cables from 4 AWG up to 300 kcmil and includes a control wire voltage tap, making it the piece you reach for when landing large feeder conductors on a 3VA52 while also picking off control voltage for the shunt trip or aux. It ships as a pack of 4 units, each individually bagged, so you can populate all three poles plus one spare without chasing a second order.
Lifecycle and compliance
Export control is straightforward: AL N / ECCN 9N9999, no special licensing required for most destinations.
Mechanical fit
Packaging dimensions are 110 x 101 x 75 mm — small enough to keep a set in the van or the panel spares bin without eating shelf space.