The Schneider Electric A9N1P40BGN is an Acti9 xC60 miniature circuit-breaker, 1-pole, rated 40 A with a B-curve magnetic trip characteristic (3...5 × In). Breaking capacity is 10 kA Icn at 240 V AC 50/60 Hz per IS/IEC 60898-1. The thermal-magnetic trip unit covers distribution applications.
The 40 A rating and B-curve mean the breaker holds at 40 A continuous load and trips magnetically between 120 A and 200 A (3–5 × In), which suits general-purpose lighting and socket-outlet circuits where inrush is modest. The 1-pole form factor clips onto a 35 mm DIN rail and occupies 18 mm (2 × 9 mm pitches) in the enclosure.
Designed and tested to IS/IEC 60898-1, the Indian-standard adoption of the IEC 60898-1 for miniature circuit-breakers. Limitation class 3 per IS/IEC 60898-1. Earth-leakage protection is via a separate block (not integrated).
