Integrator's terse spec recap
The SENTRON 3VA2325-7MN32-0AH0 is a 3-pole molded case circuit breaker (MCCB) rated 250 A continuously across the full ambient range from 40 °C to 70 °C — no derating needed in a warm enclosure. Interrupting capacity hits 330 kA at 240 V, 242 kA at 415 V, and 187 kA at 500 V; at 690 V it drops to 7.5 kA, so verify fault current at the service voltage. Designed for motor protection with phase-failure detection built in, and it ships with 2 auxiliary switches plus a trip alarm switch (HQ). The basic switch variant is 3VA2325-7MN32-0AA0.
Panel fit and mounting
Dimensions are 248 mm high, 138 mm wide, 110 mm deep — standard SENTRON 3VA form factor for 250 A frames. Mounts on a DIN rail or direct panel; the 110 mm depth fits typical 200 mm deep enclosures with room for rear busbars. No undervoltage release or ground-fault module on this variant, so plan external monitoring if those functions are needed.