The Siemens 3VA2010-6HN42-0AA0 is a 4-pole SENTRON molded case circuit breaker (MCCB) rated at a continuous 100 A across its full ambient range from 40 °C to 70 °C — no derating needed up to that ceiling. That 100 A holds steady even at 70 °C, which is unusual; most breakers start dropping current above 40 °C. If you need those, this isn't the variant.
Interrupting capacity — the real selector
The headline number is 242 kA at 240 V, dropping to 187 kA at 415 V and 440 V, then 121 kA at 500 V, and finally 3 kA at 690 V.
The IP40 front protection means it's fine in a clean indoor panel; no washdown rating. Power loss is 13.5 W maximum, so factor that into your enclosure thermal budget if you're packing several in a small cabinet.