The Schneider Electric A9C66416 is a Reflex iC60H integrated control circuit breaker from the Acti9 range — a 4-pole thermal-magnetic MCB with a 16 A rated current and a D trip curve, designed to both protect and remotely control a circuit from a single DIN-rail footprint. Rated breaking capacity hits 30 kA Icu at 220…240 V AC and 15 kA Icu at 380…415 V AC, both per EN/IEC 60947-2, which means it can safely interrupt fault currents up to those levels without welding its contacts or cascading failure upstream. Control voltage options include 230 V AC, 24 V AC, 48 V AC, 24 V DC, and 48 V DC, so you can match whatever control signal your panel already runs — maintained, maintained very low voltage, or impulse commands.
Where you'd use it
This is an integrated control circuit breaker — it combines overcurrent protection (thermal-magnetic trip) with remote ON/OFF switching in one unit, so it's a natural fit for distribution and control panels where you want to shed a load or reset a circuit from a PLC or pushbutton without adding a separate contactor. The IP20 finger-safe terminals are fine for enclosed panels; the white housing and local LED signalling (green for ON, red for fault, flashing for ready/tripped/overheat) give a clear visual at the cabinet door.