This MCCB is rated to interrupt 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at 690 V.
Continuous current and thermal derating
Above that it derates: 48 A at 55 °C, 47 A at 60 °C, 46 A at 65 °C, and 45 A at 70 °C.
The 3VA1150-5EF36-0BA0 measures 130 mm high, 76.2 mm wide, and 70 mm deep. The 3-pole footprint is standard for this class; plan for a 76.2 mm-wide slot in your panel layout.
