The Schneider Electric A9N1P16BGN is a 1-pole Acti9 xC60 miniature circuit breaker rated 16 A with a B-curve trip characteristic. It clips onto a 35 mm DIN rail and occupies 2 x 9 mm pitches (18 mm wide), making it a standard single-module fit for distribution boards. The 10 kA Icn breaking capacity at 240 V AC per IS/IEC 60898-1 covers most residential and light commercial fault levels.
The B-curve magnetic trip operates at 3 to 5 times In (48 to 80 A), so it's sized for resistive and general-purpose loads where inrush is modest — lighting circuits, socket outlets, small heaters. The thermal-magnetic trip unit handles overloads via a bimetal strip and shorts via a solenoid, a proven combination. Breaking capacity of 10 kA Icn at 240 V AC means this MCB can safely interrupt a fault current up to 10,000 A without welding contacts or failing catastrophically. The IP20 finger-safe terminals are standard for enclosed distribution boards.
Clip-on mounting to 35 mm DIN rail with tunnel-type terminals accepting up to 25 mm² rigid or 16 mm² flexible cable. Bottom connections only; wire strip length is 13 mm. The 77.5 mm depth is shallow enough for most 100 mm deep enclosures, though check gland-plate clearance if wiring from the rear. The ON/OFF toggle provides local contact position indication.