The Siemens 3VA9474-0JC23 is a SENTRON TA2.4 wire connector designed for terminating two copper or aluminum cables in the 2/0 AWG to 600 kcmil range, with an integrated control-wire voltage tap-off. It is an accessory for 3VA5/6 400/600 molded-case circuit breakers, used in distribution panels where high-current feeder cables need a clean, code-compliant termination point that also provides a reduced-size tap for control or monitoring circuits.
What the ratings mean for fit
Accepting both copper and aluminum conductors in the same 2/0–600 kcmil range means the 3VA9474-0JC23 can land service-entrance or feeder conductors without needing separate connector families for each metal — useful on a panel where the incoming utility feed is aluminum but downstream branch circuits are copper.
Lifecycle and sourcing reality
For a procurement buyer filling a BOM line, the key confirmation is that the TA2.4 connector fits the 3VA5/6 400/600 frame breakers — verify the breaker frame designation before committing the line. Sourced and quoted to order against an RFQ through independent distribution; availability and current pricing confirmed at quote time.