It packs a thermal-magnetic trip for overload and short-circuit (C curve, magnetic trip 5–10 x In) plus voltage-independent residual current detection at 30 mA Type AC. That 30 mA sensitivity covers the standard personnel-protection threshold per EN/IEC 61009, so it's the go-to for socket-outlet circuits, lighting, and general-purpose final subcircuits where you need both fault-current and earth-leakage protection in one DIN-rail slot.
The 30 mA residual sensitivity is instantaneous (no intentional delay), so it clears a ground fault in the time the standard requires — no coordination with downstream RCDs unless you add selective types upstream.
Neutral is on the left, line on the right — fixed polarity, so verify busbar orientation before racking in. The toggle gives clear ON/OFF indication and a local contact-position flag.