Integrator's note on the A9N3P06DIN
The Schneider Electric A9N3P06DIN is a 3-pole Acti9 xC60 miniature circuit breaker rated 6 A with a D tripping curve. The thermal-magnetic trip unit triggers magnetically at 12 x In (±20 %), which means it handles high inrush currents — typical for motor or transformer loads where the D curve is the right call. Breaking capacity is 10 kA Icn at 380–415 V AC 50/60 Hz per IS/IEC 60947-2, and 15 kA Icu at 100–125 V DC. Limitation class 3 means it limits let-through energy well, which helps downstream component coordination.
DIN rail integration and wiring
Standards and environmental rating
Certified to IS/IEC 60947-2, category A, with suitability for isolation marked. Pollution degree 3, overvoltage category IV, and tropicalisation class 2 per IEC 60068-1 (handles 95 % RH at 55 °C). Electrical and mechanical durability both rated at 20,000 cycles — solid for a distribution MCB in a panel that sees occasional switching.