It protects a single-phase final subcircuit against overload, short-circuit, and earth leakage. The 1P+N design switches the line conductor only; the neutral is switched internally for isolation but not protected.
Depth is 77 mm, installation depth 70 mm — verify enclosure depth clearance, especially in shallow gland-plate areas. Supply can enter from top or bottom; no mandatory orientation. IP20 with the distribution board installed and conductors connected — not rated for wet or dusty environments. Ambient temperature range is -40 °C to 75 °C, with a derating curve above 30 °C: 9.4 A at 40 °C, 9.1 A at 45 °C, 8.7 A at 50 °C, 8.1 A at 55 °C. In a hot enclosure, size the load accordingly.