Breaking capacity is 40 kA Icu at 240 V AC, 25 kA at 415 V AC, and 20 kA at 440 V AC — so on a 415 V distribution board it can safely interrupt a fault current up to 25 kA without blowing up. That's the B-frame rating, meaning it's sized for downstream feeder protection where fault currents are moderate.
Mounts on a backplate, flat, horizontal or vertical. Front connections top and bottom — no rear terminals to wrestle with in a panel. Width is 140 mm, depth 86 mm, height 161 mm. Neutral sits on the left; connection pitch is 35 mm. It's rated for isolation (suitability for isolation Yes per EN/IEC 60947-2), so you can use it as a disconnecting means for a motor or feeder.