The Siemens SENTRON 3VA2225-7HM32-0AA0 is a 3-pole molded case circuit breaker rated for 250 A continuous current (Iu) at 40 °C through 50 °C, with a slight thermal derating above that — 241 A at 55 °C, 232 A at 60 °C, 222 A at 65 °C, and 213 A at 70 °C. The interrupting capacity hits 330 kA at 240 V AC, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 4.5 kA at 690 V. The ETU330 electronic trip unit gives adjustable I²t and short-time pickup, so this breaker coordinates downstream with smaller MCCBs or fused switches — selectivity curves are available from Siemens.
Panel fit and physical integration
Dimensions: 86 mm deep, 105 mm wide, 181 mm tall (3.39 × 4.13 × 7.13 in).