It's a 2-pole unit wired as 1P+N — meaning it switches both the phase and the neutral conductor, with the neutral pole switching but not protecting. That makes it the right choice for single-phase branch circuits where you want the neutral isolated when the breaker opens, common in European panel builds. It snaps onto a DIN rail (quick assembly system, any mounting position) and takes up 2 modular width units — 36 mm wide, 90 mm tall, 76 mm deep with 70 mm installation depth behind the panel. That's a standard footprint; it'll drop into any DIN-rail enclosure without surprises.
Ratings that matter for the panel
The C-curve (tripping characteristic class C) means it holds through 5–10× rated current before the magnetic trip fires — designed for circuits with moderate inrush, like motor starters, small transformers, or banks of LED drivers. For UL 1077 / CSA C22.2 No. 235 jurisdictions, it's rated 5 kA — a common derating for North American supplementary protector listings. Rated operating voltage is 230 V AC single-phase (250 V max single-phase operation). Frequency is 50/60 Hz. The DC side maxes out at 72 V — useful to know if someone tries to use it on a DC bus; it's not its primary job.
Sealable (can be locked in OFF position with a padlock hasp). Operating temperature range is -40 °C to 75 °C, with humidity derating above 55 °C: max 95% RH up to 55 °C, then 55% RH up to 70 °C, then 35% RH up to 75 °C. Vibration resistance per IEC 60068-2-6: ±1 mm at 5–25 Hz, 50 m/s² at 25–150 Hz.