The Siemens 3VA4125-4ED14-3AA0 is a 1-pole circuit breaker from the 3VA4 series, UL Frame 125, rated 25 A continuous with a 25 kA interrupting capacity at 277 V. The TM210 thermal-magnetic trip unit gives fixed overload protection at 25 A (Ir permanently set) and short-circuit pickup at 12 times In (Ii = 300 A). That fixed Ir means no field adjustment; what you order is what protects the conductor.
RoHS compliance is confirmed since 13 May 2019. Export control classification is AL:N / ECCN:EAR99 — no special licensing required for most destinations.