Its continuous current rating Iu is 160 A, and it holds that rating from 40 °C through 50 °C ambient; above that it derates to 153.6 A at 55 °C, 150.4 A at 60 °C, 147.2 A at 65 °C, and 144 A at 70 °C. The interrupting capacity is the headline: 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at 690 V.
The 76.2 mm width is a standard 3-pole MCCB footprint for this class — it occupies three 25.4 mm (1-inch) module positions on a DIN rail or panel-mount backplate. Depth of 70 mm means it clears most standard enclosure depths without forcing a deeper can.