630 A continuous, 440 kA interrupting — the ratings that matter
The Siemens 3VA2463-8HN32-0AA0 is a 3-pole SENTRON molded case circuit breaker rated for 630 A continuous at 40 °C, with an ETU350 electronic trip unit handling line-protection duty.
The 630 A rating holds at 40 °C ambient; step up to 50 °C and it derates to 593 A, at 60 °C to 557 A, and at 70 °C to 520 A. The breaker measures 110 mm deep by 138 mm wide by 248 mm tall, which fits the standard SENTRON 3VA fixed-mount footprint. Front face carries IP40 protection, so it's fine in a typical IP54 or IP55 enclosure as long as the gland plate seals the cable entries.
This order code is listed as current production. The ETU350 trip unit is an electronic design, not the older thermal-magnetic platform.