Siemens 3VA2325-5MN32-0AF0 — 250 A SENTRON MCCB with ETU350M Release
It carries a 187 kA interrupting capacity at 240 V, with the curve dropping to 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 17 kA at 690 V — so the fault-clearing headroom at typical 400 V-class distribution voltages is well above what most downstream panels will ever see, which simplifies selective coordination studies.
Thermal Derating and Continuous Current
At 55 °C it derates to 240 A, at 60 °C to 235 A, at 65 °C to 230 A, and at 70 °C to 225 A. Maximum power loss is 37.5 W, which factors into enclosure thermal calculations.
Motor Protection and Release Configuration
This is the motor protection version of the 3VA2 frame, meaning the ETU350M release is set up for the higher inrush and thermal memory that motor starting demands.