SENTRON 3VA2 motor-protection MCCB with ETU350M — 250 A frame, 330 kA IC
The Siemens 3VA2325-7MN32-0DA0 is a 3-pole SENTRON molded case circuit breaker in the motor protection version, rated 250 A at 40 °C and carrying a 330 kA interrupting capacity at 240 V. At 400 V AC-3 duty it switches motor loads rated up to 110 kW, so it's sized for a medium motor centre feeding pumps, conveyors, or compressors. No auxiliary contacts or ground-fault module are included on this variant; those would need to be added externally if your BOM calls for remote status or earth-leakage protection.
Above that it derates linearly: 240 A at 55 °C, 235 A at 60 °C, 230 A at 65 °C, and 225 A at 70 °C (–). If your panel ambient runs 55 °C or higher, factor that 4–10 % reduction into the load schedule. The 40 W maximum power loss is dissipated through the case — allow clearance around the sides for natural convection, especially when ganged with other breakers in a switchboard section. That 138 mm width is the standard 3-pole 3VA2 frame footprint — it fits the same mounting cut-out and bus-bar spacing as other 3VA2 breakers in the 250 A class. The 110 mm depth leaves room behind the panel door for the rotary handle mechanism and wiring gutters.