The Siemens SENTRON 3VA2225-6HL32-0HL0 is a 3-pole molded case circuit breaker rated for 250 A continuous current at 40 °C, with a breaking capacity of 242 kA at 240 V and 187 kA at 415 V. The 250 A frame holds flat across 40–50 °C; above that it derates to 241 A at 55 °C, 232 A at 60 °C, 222 A at 65 °C, and 213 A at 70 °C. The basic switch core is order code 3VA2225-6HL32-0AA0.
Breaking capacity across voltage — selectivity planning
Breaking capacity drops sharply above 500 V: 121 kA at 500 V, then only 4.5 kA at 690 V. For 400 V class panels (415–440 V) the 187 kA rating gives generous headroom for most industrial services. The minimum breaking current is 375 A, so it coordinates downstream with smaller MCCBs or fuses above that threshold.