The interrupting ratings are substantial: 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, 30 kA at 500 V, and 4.5 kA at 690 V, which covers most industrial fault-current scenarios across common voltage levels.
The breaker holds 160 A continuously up to 50 °C ambient. Above that, it derates linearly: 156 A at 55 °C, 151 A at 60 °C, 147 A at 65 °C, and 142 A at 70 °C. Maximum power loss is 33 W.
The auxiliary switch design is listed as 3VA12165MH320AA0. For an MRO planner, this means the breaker is ready for remote trip and status indication out of the box, but if you need undervoltage protection or ground-fault sensing, you will need a different order code or an add-on module.
It is a standard DIN-rail mountable MCCB footprint for the SENTRON 3VA platform. In a panel, the 105 mm width occupies roughly 6 TE (terminal units) on a DIN rail.