The SENTRON 5SQ2570-0KA32 is a 2-pole (1P+N) miniature circuit breaker with a C-curve tripping characteristic, rated 32 A at 240 V AC, 50 Hz. It switches the neutral conductor alongside the line, so it's a single-module-width breaker that isolates both poles when it trips — no separate neutral bar needed in the distribution board. The 3 kA breaking capacity (per EN 60898 and IEC 60947-2) covers residential and light commercial fault levels; the C-curve (5 to 10 times rated current) handles motor inrush and lighting loads without nuisance tripping.
Overvoltage category III means it's rated for fixed-installation mains (distribution level, not sub-distribution).