The Schneider Electric A9DG2616 is an Acti9 iCV40 RCBO — a combined residual-current circuit breaker with overcurrent protection in a single 36 mm-wide, 1P+N module. Breaking capacity is 4500 A Icn at 230 V AC, 50/60 Hz, conforming to EN/IEC 61009-2-1.
The 16 A rated current (In) sets the continuous load limit for the outgoing circuit — size your downstream conductors and loads to stay under this. The 30 mA earth-leakage threshold provides personal protection against direct contact; it is the standard sensitivity for socket-outlet circuits in many domestic and commercial installations. The B-curve (3–5 x In magnetic trip) means the breaker will hold through mild motor inrush or capacitive loads but trips quickly on a hard short — a good match for lighting, small appliances, and general-purpose outlets where the load profile is predictable. In a distribution board, this limits where the RCBO can be placed downstream of a larger upstream breaker or fuse that clips the prospective fault current below 4.5 kA. Thermal-magnetic trip technology means the thermal element handles sustained overloads (slow, heat-dependent) while the magnetic coil reacts to short-circuit currents. The 20000-cycle electrical and mechanical endurance is typical for this class of RCBO — adequate for normal switching duty in a distribution board, but not intended for frequent load-break applications like motor starting.
Tunnel-type terminals accept 1 to 16 mm² rigid or 1 to 10 mm² flexible cable; strip 14 mm and tighten to 2 N·m.