The Siemens SENTRON 3VA2225-6HN32-0AD0 is a 3-pole molded case circuit breaker (MCCB) rated for 250 A continuous current at 40 °C, with a maximum breaking capacity of 242 kA at 240 VAC. At 415 V the interrupting rating drops to 187 kA, and at 690 V it falls to 4.5 kA, so the voltage-dependent curve governs where it can be applied without cascading upstream. The continuous current derates above 50 °C: still 250 A at 50 °C, then 241 A at 55 °C, 232 A at 60 °C, 222 A at 65 °C, and 213 A at 70 °C. The 3-pole construction covers three-phase systems.
The width is the critical dimension for multi-breaker panel layouts — 105 mm per pole set is standard for this frame class. The 86 mm depth fits standard distribution board depths; verify clearance for cable connections and arc-chute exhaust at the rear of the enclosure.