The breaking capacity climbs to 121 kA at 240 V AC and still holds 76 kA at 415 V AC, 53 kA at 440 V AC, and 12 kA at 500 V AC — numbers that tell you it can live upstream of a high-fault transformer or a big motor control center without needing a current-limiting fuse ahead of it.
At 55 °C it drops to 62 A, at 60 °C to 61 A, at 65 °C to 60 A, and at 70 °C to 58 A. That's a gentle slope, so if your panel ambient runs 55 °C on a summer afternoon you still get 62 A continuous. The rated insulation voltage is 800 V, and the max operating voltage is 690 V AC or 500 V DC, which covers most 480/277 V and 600 V industrial systems in North America and 400 V in Europe.
No trip indicator, no undervoltage release, no communication module — this is a basic thermal-magnetic breaker, not a smart or remotely-tripped unit.
