At 415 V it still holds 154 kA, and at 690 V it drops to 17 kA, so the voltage-dependent SCCR governs where it can be placed in a 690 V system. The thermal derating curve is flat from 40 °C to 50 °C at 100 A, then steps down to 96 A at 55 °C, 94 A at 60 °C, 92 A at 65 °C, and 90 A at 70 °C. In a crowded panel with ambient above 50 °C, the breaker must be loaded below 100 A — plan the branch circuit accordingly.
The breaker measures 70 mm deep, 76.2 mm wide, and 130 mm high — a compact 3-pole footprint that fits standard DIN-rail or panel-mount enclosures. The auxiliary trip accessory is order code 3VA9688-0BL33.