At 440 V the breaking capacity drops to 75.6 kA, then to 17 kA at both 500 V and 690 V. For a 160 A frame this is a high-interrupting-capacity variant — not every MCCB in the 3VA family carries 220 kA at 240 V.
At 55 °C it drops to 158 A, at 60 °C to 155 A, and at 70 °C to 150 A. If the enclosure runs hot (stacked breakers, poor airflow), the 150 A floor at 70 °C still leaves headroom for a 150 A feeder. The maximum power loss is 38 W, which factors into the enclosure thermal budget. Dimensions are 76.2 mm wide (3 in), 130 mm tall, and 70 mm deep — a standard 3-pole MCCB footprint that fits most Siemens SENTRON mounting plates and DIN-rail adapters.