The Schneider Electric A9N4P16DGN is a 4-pole miniature circuit breaker from the Acti9 xC60 range, rated 16 A with a D-curve trip characteristic.
The 16 A rated current is the continuous thermal rating; the 10 kA Icn breaking capacity at both 240 V and 415 V AC (50/60 Hz) confirms it can interrupt a fault up to that level without failing, which is the standard for most commercial and light industrial distribution boards in IEC markets.
Clip-on mounting on a 35 mm DIN rail, 4-pole width at 8 x 9 mm pitches (72 mm wide).
