It carries a breaking capacity of 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 7.5 kA at both 500 V and 690 V — the SCCR drops sharply above 440 V, so verify the available fault current at your system voltage before specifying. It is a straightforward thermal-magnetic breaker for feeder or branch-circuit protection where remote tripping via the shunt trip is required.
The 80 A rating holds from 40 °C through 50 °C, then derates to 78 A at 55 °C, 77 A at 60 °C, 75 A at 65 °C, and 74 A at 70 °C. In a sealed panel with ambient above 50 °C, plan for the reduced continuous current. Maximum power loss is 19.2 W — account for this in the panel thermal budget, especially when breakers are ganged without spacing.