Its breaking capacity is specified across multiple voltages: 220 kA at 240 V, 154 kA at 415 V, 75.6 kA at 440 V, and 17 kA at both 500 V and 690 V. Maximum power loss is 38 W — a useful number for panel thermal calculations when multiple breakers are ganged.
Above that it derates: 158 A at 55 °C, 155 A at 60 °C, 153 A at 65 °C, and 150 A at 70 °C. If your panel ambient runs at 60 °C, you lose 5 A — still within most design margins, but worth checking if you are loading the breaker near its nameplate.
The 3-pole width of 76.2 mm (3 inches) is standard for this class of MCCB, so it fits existing panel cutouts and busbar spacing designed for 3-inch-centre breakers.