The interrupting ratings are specified per the evidence: 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 7.5 kA at 690 V — these are the values the breaker must clear without damage, and they govern the available fault current the installation can tolerate upstream. The 100 A rating holds flat from 40 °C through 50 °C, then derates to 96 A at 55 °C, 94 A at 60 °C, 92 A at 65 °C, and 90 A at 70 °C; that derating curve matters when the breaker lives inside a warm enclosure with other heat sources. The integrated auxiliary trip is order code 3VA9688-0BL30.
Mounting dimensions and panel fit
The physical envelope is 130 mm height, 101.6 mm width, and 70 mm depth. These dimensions determine the DIN-rail or mounting-plate footprint inside the enclosure. The 70 mm depth means the breaker projects that far from the mounting surface — verify clearance to the gland plate or door when the panel is densely packed. The 101.6 mm width (approximately 4 inches) is the space the 4-pole unit occupies on the rail; a 3-pole sibling would be narrower, but this unit's width is fixed by the four poles.