Its breaking capacity is 100 kA at 400 V AC (also 100 kA at 240 V, 500 V, and 690 V AC), so it can safely interrupt a fault current up to that level without upstream fuses or breakers needing to coordinate — a strong SCCR (short-circuit current rating) for a device this compact.
Dimensions are 45 mm wide, 97 mm high, 96 mm deep — a 45 mm footprint that fits a standard 45 mm slot in a motor control center (MCC) bucket or a standalone DIN-rail enclosure.
Main circuit terminals are screw-type, accepting solid or stranded conductors: 2x (1... 2.5 mm²) and 2x (2.5... 6 mm²) per clamp — enough for the 0.32 A rating but also for the larger wire sizes needed to carry the fault current without overheating the terminal. Auxiliary switch option is present, though no auxiliary contacts are pre-installed (0 for auxiliary contacts,) — the buyer adds the aux block separately if remote status is needed.