The interrupting ratings are what make this part stand out: 220 kA at 240 V AC, 154 kA at 415 V, and still 17 kA up to 690 V — meaning it handles high-fault-current scenarios like transformer secondaries or large motor control centers without cascading upstream.
The 80 A rating holds from 40 °C up to 50 °C ambient without derating — at 55 °C it's 78 A, at 70 °C it's still 74 A.
Operating temperature range is -25 °C to 70 °C, storage from -40 °C to 80 °C, so it's fine for unheated warehouses or outdoor enclosures as long as the front stays IP40-protected.
