Breaking capacity is 4500 A Icn at 220–240 V AC, 50/60 Hz, per EN/IEC 61009-2-1.
The C curve means the magnetic trip operates between 5 and 10 times rated current — so 80 to 160 A for this 16 A unit. That's a good fit for motor-starting or transformer inrush where you don't want nuisance trips on a brief surge. The 30 mA earth-leakage threshold is the standard for personal protection (IEC 60364 recommends it for socket-outlet circuits). The thermal-magnetic trip unit handles the overload side; the integrated residual current module handles the ground-fault side. Both in one package saves a DIN rail slot compared to a separate MCB + RCCB. The IP20 body is fine inside an enclosure; the modular enclosure gets IP40 once installed. Connection pitch is 9 mm between phase and neutral, so the tunnel terminals line up cleanly on a standard DIN-rail busbar.
Neutral is on the left, phase on the right — standard for Acti9 DPN Vigi. Tunnel terminals accept 0.75–16 mm² rigid or 0.33–10 mm² flexible; strip length 15 mm, tighten to 2 N·m. The toggle gives clear ON/OFF/fault-trip local signalling, so you can see at a glance whether it's a trip or a manual shutdown.