The Schneider Electric A9N2P20BIN is an Acti9 xC60 miniature circuit breaker rated 20 A with a B tripping curve, 2-pole configuration, and a breaking capacity of 10 kA Inc at 380–415 V AC 50/60 Hz per IS/IEC 60947-2.
Depth 77.5 mm, height 85 mm. That 36 mm footprint for a 2-pole MCB is standard — it occupies two module positions on the rail, so a 12-module enclosure holds six of these side by side. Tightening torque 2 N·m.
The 6 kA Icu at 100–125 V DC covers DC-side protection for battery banks or DC busbars.
Certified to IS/IEC 60947-2, Category A — the standard for MCBs used in distribution. Limitation class 3 per that standard, meaning it limits let-through energy well. IP20 finger-safe terminals. Earth-leakage protection via a separate block if needed. The brand provides standard compliance documentation (RoHS, REACH, CE, UKCA) with the product; specific declarations available on request.