The Siemens 3VA2325-5HL32-0BA0 is a SENTRON molded case circuit breaker rated for 250 A continuous current (Iu) at 40 °C, with a 3-pole line-protection configuration and an ETU320 electronic trip unit.
Rating and derating — what the thermal curve means for your load
Above that it derates: 240 A at 55 °C, 235 A at 60 °C, 230 A at 65 °C, and 225 A at 70 °C. The maximum power loss is 40 W, so heat dissipation inside the panel is manageable but not negligible.
Interrupting capability across voltage levels
The interrupting ratings step down with system voltage: 187 kA at 240 V, 121 kA at both 415 V and 440 V, 75.6 kA at 500 V, and 17 kA at 690 V. At 690 V the 17 kA figure is modest — verify your available fault current if you're running a 690 V distribution.
The 138 mm width means it occupies three pole spaces on a standard DIN-rail profile. No auxiliary contacts are included — if you need status feedback, you'll add a separate auxiliary switch block (the integrated auxiliary trip is a separate order code 3VA9608-0BB11). The undervoltage release is built in, so you don't need an external UVR module.