It combines short-circuit and overload protection in one device, with a Trip Class 10 characteristic that matches the thermal curve of standard induction motors during start-up — meaning it holds through the inrush without nuisance tripping, then clears a fault fast. Rated breaking capacity is 100 kA at 240 V, 400 V, 500 V, and 690 V AC — that's a high-interrupting rating for a 45 mm wide package. It means this breaker can sit upstream of a motor starter without needing a separate current-limiting fuse for most industrial fault levels up to 100 kA. If one phase drops, the breaker trips — critical for preventing single-phasing damage on three-phase motors.
Any mounting position is allowed, so it can go sideways in a tight enclosure if needed. Terminals are M3 screw-type for the main circuit, accepting 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²) solid or stranded wire. The 9 mm side clearance and 20 mm upward/downward clearance are the minimum free space around the breaker for heat dissipation and tool access.