The Schneider Electric A9N1P16DIN is an Acti9 xC60 miniature circuit breaker — a 1-pole, 16 A thermal-magnetic MCB with a D tripping curve, rated to IS/IEC 60947-2.
Breaking capacity is 10 kA Icu at 220–240 V AC 50/60 Hz, 15 kA Icu at 12–48 V DC, and 6 kA Icu at 60 V DC — all per IS/IEC 60947-2. For DC circuits, the 15 kA at 48 V covers common control-voltage rails, but the drop to 6 kA at 60 V means you need to check the actual fault current if running a 60 VDC bus.
That's a single-module footprint — standard for a 1P MCB in a distribution board.
