What this MCCB delivers
The Siemens SENTRON 3VA2225-6KP32-0AJ0 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 AC and 187 kA at 415 V AC — enough to handle high-fault utility feeds or large motor branch circuits without cascading upstream. It holds the full 250 A rating up to 50 °C ambient; above that it derates to 238 A at 55 °C, 225 A at 60 °C, 213 A at 65 °C, and 200 A at 70 °C — so if your panel runs hot, size the load accordingly. The breaker includes a trip indicator and a communication function, plus 2 auxiliary switches and 1 trip alarm switch (HP design) for remote status feedback.
Mounting and integration
At 105 mm wide, 181 mm tall, and 86 mm deep, this MCCB fits standard SENTRON panel cutouts and busbar systems. The 3-pole footprint matches the 3VA family, so it drops into existing mounting rails without re-drilling. Maximum power loss is 48 W — account for that heat in your enclosure ventilation calculation, especially if the breaker is fully loaded at 250 A in a sealed cabinet.