The Siemens SENTRON 3VA2225-7KP32-0HA0 is a 3-pole molded case circuit breaker rated 250 A continuous (Iu) across 40 °C to 50 °C, with the ETU850 electronic overcurrent release handling line protection. At 415 V and 440 V it still holds 242 kA, and drops to 187 kA at 500 V; at 690 V the rating is 4.5 kA, so verify coordination if the secondary side runs that voltage.
The breaker measures 105 mm wide, 181 mm high, and 86 mm deep — standard SENTRON 3VA footprint for a 250 A frame. IP40 on the front means it tolerates tool-dust and incidental touch in an enclosed cabinet but not washdown. The ETU850 release includes communication function (PROFIBUS/PROFINET-ready via the 3VA COM module), so it can report trip events and load current back to a PLC — useful for predictive maintenance on a CNC line or conveyor system.
Rated 250 A from 40 °C to 50 °C; above that it derates linearly to 200 A at 70 °C. Maximum power loss is 48 W — that heat must be considered in panel thermal calculations, especially if the breaker is enclosed with other high-current devices.