It holds 125 A flat from 40 °C through 50 °C, then derates to 120 A at 55 °C, 117.5 A at 60 °C, 115 A at 65 °C, and 112.5 A at 70 °C — so in a warm panel you lose about 10 % of headroom by the top of the operating range. Breaking capacity runs 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 10.5 kA at 690 V — a steep drop above 415 V, so if your fault current is high on a 480 V or 690 V system, check the coordination study against the 32 kA or 10.5 kA limit before committing the BOM line. The integrated auxiliary trip uses order code 3VA9608-0BB11 if you need to add a shunt or UVR later.
Front protection is IP40 — fine for a dry enclosure, not for washdown. Latching endurance is 15 000 operations.