The SENTRON 3VA2225-8HL32-0BH0 is a 3-pole molded case circuit breaker rated for 250 A continuous current at 40 °C, with a line-protection design that includes an undervoltage release (UVR) and a complement of 2 auxiliary switches plus 1 trip alarm switch (HQ). Its interrupting capacity is the headline: 440 kA at 240 V, 330 kA at 415 V and 440 V, 220 kA at 500 V, and 52.5 kA at 690 V — numbers that put it in the high-fault tier for industrial distribution, not a general-purpose branch breaker. The thermal derating curve is published: it holds 250 A flat through 50 °C, then steps down to 241 A at 55 °C, 232 A at 60 °C, 222 A at 65 °C, and 213 A at 70 °C. If your enclosure hits 55 °C internal ambient, you lose 9 A — plan the load margin accordingly.
Auxiliary and release configuration
The basic switch assembly is order code 3VA2225-8HL32-0AA0, meaning the '0BH0' variant adds the UVR and the specific aux-switch configuration on top of that base platform.