The Siemens SENTRON 3VA2325-7MN32-0CC0 is a 3-pole molded case circuit breaker rated at 250 A continuous at 40 °C, with a symmetrical breaking capacity of 330 kA at 240 V AC. Power loss maxes out at 40 W, so ventilation planning is straightforward. Physical footprint: 138 mm wide, 248 mm tall, 110 mm deep.
Breaking capacity — the so-what
At 240 V it interrupts 330 kA; at 415 V that drops to 242 kA, and at 690 V it's still 7.5 kA. The steep roll-off above 500 V is typical for this frame size — the arc extinction physics don't scale linearly. For a 400 V-class panel (common in European industrial mains), 242 kA SCCR means it can sit downstream of a transformer with negligible impedance and still hold coordination.
Motor protection and auxiliary hardware
Phase-failure detection is built in. The basic switch core is order code 3VA2325-7MN32-0AA0, so this variant adds the UVR and auxiliary contacts at the factory.