The Siemens SENTRON 3VA2325-7MN32-0BA0 is a 3-pole molded case circuit breaker (MCCB) rated for 250 A continuously across the full 40 °C to 70 °C ambient range — no derating needed as the panel warms up. That flat thermal curve is unusual and simplifies panel coordination: you size the bus and downstream gear for a solid 250 A, not a sliding number. The interrupting ratings climb with available fault current: 330 kA at 240 V, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 7.5 kA at 690 V (–).
Undervoltage release and auxiliary options
No auxiliary switch is included, so if you need remote status feedback, that's a separate add-on. The basic switch variant is 3VA2325-7MN32-0AA0 — the -0BA0 adds the UVR. If your BOM already calls for the -0AA0 and you need undervoltage protection, this is the drop-in replacement with the release integrated.
Maximum power dissipation is 40 W — account for that heat in the enclosure sizing, especially if multiple breakers are ganged in a sealed cabinet.