What this MCCB is and what it carries
The Siemens 3VA2225-5JP32-0AJ0 is a SENTRON molded case circuit breaker (MCCB) rated for 250 A continuous current across a 40 °C to 50 °C ambient — no derating needed in that band. At 55 °C it still holds 238 A, and at 70 °C it's good for 200 A. That's a solid thermal curve for a panel that runs warm. Breaking capacity is 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 4.5 kA at 690 V. That 187 kA at 240 V tells you this breaker is built for high-fault industrial services — not a light-duty panelboard breaker. It's a 3-pole unit, line-protection design, with a communication function onboard and a trip indicator. The auxiliary switch complement is 2 auxiliary switches plus 1 trip alarm switch (HP type). No undervoltage release, no ground-fault monitoring — that's the base variant.
Dimensions and panel fit
Footprint is 105 mm wide by 181 mm tall, 86 mm deep. That's a standard 3-pole MCCB envelope for this class — it'll drop into a SENTRON 3VA2 mounting base or a panel that's already cut for a 105 mm wide breaker. No surprises on the gland plate.