The Siemens SENTRON 3VA2463-5HN32-0AD0 is a 3-pole molded case circuit breaker rated for 630 A continuous at 40 °C, with a 187 kA interrupting capacity at 240 V and 121 kA at 415 V. That interrupting headroom means it can sit upstream in a distribution panel feeding multiple downstream branch breakers and still clear a bolted fault without the arc flashing past the main — selectivity stays intact. The 630 A frame is the real working current for a 40 °C ambient. That derating curve is the number to use for the BOM, not the 630 A nameplate.
Three 110 mm depth means it clears a 120 mm deep enclosure backplate without the rear terminals brushing the gland plate. No special cut-out; mounts on the DIN rail or direct-screw pattern common to the SENTRON family.
Configuration and auxiliaries
The basic switch is the 3VA2463-5HN32-0AA0. If the panel spec calls for shunt trip or remote signaling, those are add-on accessories, not built in.