It's a line-protection device — meaning it's sized for feeder or main breaker duty in a distribution panel, not motor protection. Breaking capacity runs from 242 kA at 240 V down to 5 kA at 690 V — the 242 kA figure at 240 V tells you this breaker handles high available fault current on the secondary side of a step-down transformer without needing a current-limiting fuse ahead of it.
Dimensions are 105 mm wide, 181 mm tall, 86 mm deep — that's a standard 3-pole MCCB footprint for a 100 A frame. The 86 mm depth matters when you're laying out a shallow enclosure; it clears most 200 mm deep wall-mount boxes.
At 55 °C it drops to 96.25 A, at 60 °C to 92.5 A, and at 70 °C to 85 A. If your enclosure sits in a hot mezzanine or near a furnace, use the 70 °C figure for your load calculation. Mechanical endurance is 20,000 operations. The storage range governs shipping and warehouse conditions; the operating range is what matters once it's wired in the panel.