The Schneider Electric A9N2P10DGN is a 2-pole miniature circuit breaker from the Acti9 xC60 family, rated 10 A with a D tripping curve. It protects final subcircuits against overload and short-circuit in AC distribution boards, per IS/IEC 60898-1. The D curve means magnetic tripping occurs at 10 to 14 times rated current (100–140 A instantaneous), so it handles the inrush of motor loads, transformers, or welding equipment without nuisance trips. For a 10 A breaker, that's a solid 100–140 A magnetic pickup — sized for high-starting-current circuits. Breaking capacity is 10 kA Icn at both 240 V and 415 V AC (50/60 Hz), certified to IS/IEC 60898-1.
Occupies two pole positions in a standard distribution board. Height 85 mm, depth 77.5 mm — fits flush in a residential or commercial enclosure with a transparent door. Biconnect feature allows daisy-chaining outgoing circuits without a separate distribution block.
Thermal-magnetic trip unit: the thermal bimetal protects against sustained overload (heating), the solenoid handles short-circuit. Rated operational voltage 220–240 V AC or 380–415 V AC, 50/60 Hz. Overvoltage category IV — suitable for main incoming supply at the service entrance, not just downstream subcircuits. Electrical and mechanical durability both rated at 20,000 cycles — typical for a distribution MCB; not intended for frequent switching duty (use a contactor or switch-disconnector for that). Earth-leakage protection requires a separate RCCB block (not integrated). The MCB itself provides overcurrent and short-circuit protection only.