The Siemens 3VU2935-0K is a terminal cover designed specifically for the 3VU2.4 and 3VU2.5 circuit breaker frames. It ships as a two-piece set — one cover for the input (line) side and one for the output (load) side. This is a mechanical accessory, not an electrical component. Its function is to shield the exposed terminals of the circuit breaker after wiring, providing finger-safe protection per the enclosure's IP rating and reducing the risk of accidental contact during maintenance or inspection.
The cover clips onto the 3VU2.4 and 3VU2.5 circuit breaker bodies. No tools are required for installation — it snaps into place over the terminal area after the conductors are torqued down. Because it is a two-piece set, the input and output covers can be removed independently, which is useful when only one side needs re-termination without disturbing the other.