The Siemens SENTRON 3VA1025-4ED32-0CC0 is a 3-pole molded case circuit breaker (MCCB) rated 25 A at 40 °C, with a breaking capacity of 121 kA at 240 V AC. At 415 V the interrupting rating drops to 75.6 kA, and at 690 V to 11.9 kA, so verify the available fault current at your service voltage before specifying. The breaker carries a continuous current rating that holds at 25 A from 40 °C through 50 °C, then derates to 24 A at 55–60 °C and 23 A at 65–70 °C — a gentle slope that gives headroom in warm enclosures.
Maximum power loss is 11 W, which is moderate for a 25 A MCCB. In a densely packed panel, that heat adds to the enclosure rise — account for it in the thermal budget if the breaker is mounted alongside other heat sources.
Footprint is 76.2 mm wide by 130 mm tall by 70 mm deep — a standard 3-pole MCCB width that fits most DIN-rail or panel-mount enclosures without surprises.