The 3VM1220-5ED32-0AA0: Interrupting capacity is 187 kA at 240 V AC, 121 kA at 415 V, 76 kA at 440 V, and 30 kA at 500 V — figures that cover most industrial service-entrance and distribution applications where high fault current is expected. Rated insulation voltage (Ui) is 690 V, and maximum operational voltage with DC is 500 V.
Above that it derates: 194 A at 55 °C, 188 A at 60 °C, 182 A at 65 °C, and 176 A at 70 °C. Maximum power loss is 42 W. That is modest for a 200 A frame, but in a densely packed enclosure with multiple breakers side by side, the cumulative heat needs to be factored into the ventilation or forced-air calculation.
