The Siemens SENTRON 3VA2220-7MN32-0CC0 is a 3-pole molded case circuit breaker (MCCB) rated for 200 A continuous at 40 °C, built around the ETU350M electronic trip unit. This is the motor-protection variant, meaning the trip curve is shaped for motor-start inrush rather than straight feeder duty — it rides through the 6–8× FLA spike on a 3-phase induction motor start, then clears on sustained overload or short-circuit.
SCCR headroom and the derating curve
The interrupting capacity drops as system voltage rises — 242 kA at 415 V and 440 V, 187 kA at 500 V, 52.5 kA at 690 V. That 690 V figure is the one to check if you are feeding a 690 V drive bus; 52.5 kA is still substantial, but it is a fraction of the 240 V rating. Continuous current holds flat at 200 A from 40 °C through 50 °C, then steps down: 192 A at 55 °C, 188 A at 60 °C, 184 A at 65 °C, 180 A at 70 °C. In a sealed panel with no forced ventilation, the 55 °C or 60 °C row is the one that governs your actual ampacity.