The 5SU1336-7FP32: The 32 A rating at 30 °C is the headline figure, but the derating curve matters more for a warm enclosure: at 40 °C it carries 30.8 A, at 50 °C it drops to 29.5 A, and at 70 °C it is down to 26.9 A. If your panel ambient runs at 50 °C, size the load to 29.5 A continuous, not 32 A. For purely resistive loads with no inrush, a B-curve would be a tighter fit; for high-inrush transformers, a D-curve would be needed. Breaking capacity of 6 kA per both EN 60898 and IEC 60947-2 means it safely interrupts a 6 kA prospective fault current at 400 V AC — sufficient for most commercial and light industrial distribution boards fed by a transformer of typical impedance. The 500 V insulation voltage (Ui) and overvoltage category III confirm it is rated for fixed-installation mains distribution, not just final circuits.
Depth is 72 mm, installation depth 70 mm — fits standard 80 mm deep enclosures. Mounting position is any, so horizontal or vertical orientation is fine as long as the distribution board is IP20 rated with conductors connected.