The 13 A rating at 30 °C derates to 12.01 A at 40 °C and 10.35 A at 55 °C, so the ambient temperature inside the enclosure must be factored into the load calculation.
The 5SL4513-8 occupies 2 modular width units (36 mm) on a DIN rail, with a depth of 76 mm and an installation depth of 70 mm. It mounts in any position, which simplifies layout in crowded enclosures. The neutral conductor is switched (product function neutral conductor switching), making this a 1+N-pole unit that disconnects both phase and neutral.