Continuous current is 630 A at 40 °C, but the breaker must be derated as ambient rises: 600 A at 45 °C, 570 A at 50 °C, 540 A at 55 °C, 510 A at 60 °C, 480 A at 65 °C, and 450 A at 70 °C. If your panel runs at 50 °C, the usable current drops to 570 A — size accordingly. Breaking capacity varies sharply with voltage: 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 9 kA at 690 V. At 690 V, the 9 kA rating means this breaker is not suited for high-fault locations on 690 V systems — verify your available fault current against that figure. The adjustable trip range spans from 945 A (minimum) to 5,670 A (maximum), giving flexibility to coordinate with downstream devices without swapping the breaker.
Maximum power dissipation is 162 W — factor that into your thermal budget if the breaker is enclosed in a small cabinet with other heat sources.