It mounts on a 35 mm DIN rail per DIN EN 60715 using either screws or the integrated snap-on clip, and the Size S00 frame keeps the footprint compact at 45 mm wide by 97 mm deep.
No ground fault detection on this variant, so if that's required, you'd need a separate GFCI or a different order code.
Mounting position is any, so vertical or horizontal panel layouts work. Clearance: 50 mm above and below, 30 mm to the side, zero forward or backward — that's tight enough for dense DIN-rail packing but leaves room for wiring fingers. Use a 3 mm diameter screwdriver with a 3.0 × 0.5 mm tip for the terminal screws.