It protects a 1P+N circuit (single pole switched, neutral solid) against overload, short-circuit, and earth leakage. Rated 32 A at 30 °C ambient with a Type C tripping characteristic (5–10× In for magnetic release), it handles the inrush from motor starters, contactor coils, and fluorescent lighting banks without nuisance trips. Breaking capacity is 4.5 kA per EN 60898 and 15 kA per IEC 60947-2, so it's rated for downstream sub-distribution where fault levels stay under 4.5 kA; the higher IEC figure covers industrial panels where the RCBO is part of a coordinated system.
Temperature derating and panel fit
The 32 A rating holds only at 30 °C. At 40 °C it derates to 30.4 A, at 50 °C to 28.8 A, and at 70 °C to 24.64 A. If this RCBO sits in a crowded enclosure near other heat sources, use the 40 °C or 50 °C figure for your load calculation — the 30 °C number is a lab rating, not a panel rating. IP20 applies only when the distribution board is installed with conductors connected; treat it as a panel-internal device, not for exposed mounting.