Breaking capacity is the headline: 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 3.7 kA at 690 V. At 690 V the capacity drops sharply, so it is not a universal 690 V breaker; match the voltage to your system's available fault current.
Dimensions are 105 mm wide, 181 mm high, 86 mm deep — a standard 3-pole MCCB footprint for a 100 A frame. It bolts into a panel or mounts on a mounting plate; no DIN-rail clip on this size class. That gives you two NO/NC contacts for status feedback and a dedicated alarm contact that closes only on a trip event — useful for remote indication or PLC input without adding external relays. Communication function is present on this variant, enabling integration with a higher-level monitoring system via a compatible communication module (not included).
The 100 A rating holds across the entire operating range, so no thermal derating curve to apply in a warm panel — a real time-saver when laying out a crowded enclosure.