It carries a continuous current rating of 100 A at 40 °C, with the same rating holding through 50 °C — only starts to derate above that, hitting 85 A at 70 °C. Breaking capacity is the headline: 242 kA at 240 V, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 4 kA at 690 V. Those numbers put it in the high-interrupting class — it clears a fault fast enough to keep upstream gear in place, which is the whole point of selective coordination in a distribution panel. Three auxiliary switches (HQ type) are built in, giving status feedback without a separate aux block. Front protection is IP40, so it's fine in a clean indoor panel but not washdown.
Footprint and panel fit
The 86 mm depth means it clears shallow backpan enclosures where a deeper frame would force a bigger cabinet.