It's designed for 50 Hz, 400 V AC systems, with a Type C tripping characteristic (magnetic release at 5–10× In) for circuits with moderate inrush, like motor starters or lighting banks. Rated 25 A at 30 °C ambient, the current derates as the panel warms: 24 A at 40 °C, 23.5 A at 45 °C, 23 A at 50 °C, 22.5 A at 55 °C, 22 A at 60 °C, and 21 A at 70 °C. That thermal curve matters when you're stuffing four of these side-by-side in a distribution board — the real-world ampacity is what the enclosure temperature dictates, not the nameplate. Insulation voltage (Ui) is 500 V, surge voltage resistance is 4 kV, and the overvoltage category is III (fixed installation).
Depth is 72 mm, height 85 mm, installation depth 70 mm. Mounting position is any — no orientation restrictions. Energy limitation class 1. The design is instantaneous (no intentional time delay on the residual current element).