Its interrupting capacity scales with system 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 — so the same breaker can serve high-fault 480 V panels or lower-fault 690 V industrial feeds without a frame size change.
Continuous current rating is temperature-dependent: 630 A at 40 °C, derating to 612 A at 45 °C, 593 A at 50 °C, 575 A at 55 °C, 557 A at 60 °C, 538 A at 65 °C, and 520 A at 70 °C — critical for panel builders calculating fill factor and ventilation in sealed enclosures. Maximum power loss is 162 W, which drives internal heat rise and must be factored into the enclosure's thermal budget, especially when multiple breakers are ganged.