It's rated for 6 kA breaking capacity under EN 60898-1 and 30 kA under IEC 60947-2, with a 15 kA DC rating per IEC 60947-2. The operating voltage is 400 V AC (single- or multi-phase) and up to 72 V DC.
The C-curve (trips at 5–10x rated current) is the standard for general-purpose motor and lighting circuits where inrush isn't extreme. The 6 kA EN rating covers most domestic and light commercial panels; the 30 kA IEC rating gives headroom for industrial distribution where fault currents are higher. The 15 kA DC rating at 60 V means it's usable in DC control circuits, but watch the voltage — the DC max is 72 V, so it won't cover a 110 V DC bus. The 2-pole design switches both phases but does not switch the neutral.
The terminals are combined (top and bottom), and the unit is sealable. Halogen-free and silicon-free construction.