Three poles, 400 V AC line-to-line, 50/60 Hz. Breaking capacity is 6 kA per EN 60898 and 5 kA per UL 1077 / CSA C22.2 No. 235. That covers most industrial panel sub-feed applications where the upstream device limits fault current below those thresholds. Overvoltage category III, so it's rated for fixed-installation distribution — not just final circuits.
Occupies 3 width units (54 mm). Terminals accept solid or stranded conductors from 0.75 mm² up to 35 mm² — generous for a 0.3 A breaker, useful when you need to loop through larger supply conductors. Combined terminals top and bottom; sealable for tamper-proofing.