Rated 100 A continuous at up to 70 °C ambient (–), so it handles full current without derating across the typical panel temperature range. The 3-pole construction suits three-phase systems up to 690 V. Breaking capacity is the headline here: 187 kA at 240 V, 121 kA at 415 V and 440 V (–), 75.6 kA at 500 V, and 3.7 kA at 690 V. At 690 V the capacity drops to 3.7 kA, so if your line-to-line voltage is that high, verify the fault current at that point doesn't exceed the rating. Power loss is 10 W maximum — that's the heat it dumps into the enclosure. For a 100 A MCCB that's reasonable; if you're packing several in a small panel, factor that into the thermal budget.
Auxiliaries and integration
The trip alarm switch signals when the breaker has tripped on fault, not just when it's open. There's also a voltage trigger and a trip indicator for local status.
The 100 A continuous rating and 3-pole line-protection design confirm fit for this BOM line.