It's designed to protect 3-phase motors up to 0.09 kW at 400 V (AC-3 duty), with a 100 kA breaking capacity across the full voltage range up to 690 V. The 3-pole unit mounts on a 35 mm DIN rail per EN 50022 via screw and snap-on fastening, and accepts screw-type terminals for both main and auxiliary circuits — solid or stranded wire from 1 to 6 mm².
The 100 kA breaking capacity at 400 V (and at 240 V, 500 V, and 690 V as well) means this breaker can safely interrupt a fault current up to that level without upstream fuses needing to clear first.
The 45 mm width (3-module) fits standard enclosure spacing. Screw terminals accept 1 to 2.5 mm² (solid or stranded) for the main circuit, and 2.5 to 6 mm² as well — no special tooling needed. The auxiliary switch option (product extension available) shares the same terminal block.