What it is and what it does
The Siemens 3VA9133-0JK11 is a SENTRON circular conductor terminal, designated TC1.1, designed as a wire connector accessory for the 3VA4/5 125 molded-case circuit breaker family. The terminal includes a control wire voltage tap-off for picking off a control voltage at the breaker line side.
Integration and panel fit
This accessory mounts on the line-side lugs of the 3VA4/5 125 A frame breakers. It converts the busbar connection into a terminal block with a control tap.