The Schneider Electric A9N60781 is a 2-pole Acti9 C120H miniature circuit breaker rated 80 A at 40 °C, with a C-curve (magnetic trip at 8 x In ±20 %). Its 15 kA Icu breaking capacity at 230...400 V AC 50/60 Hz means it can safely interrupt fault currents up to that level without upstream damage — sized for distribution panels where the prospective short-circuit current is known to stay under 15 kA. IP20 finger-safe terminals accept rigid conductors up to 50 mm² or flexible up to 35 mm², with a tunnel-type terminal tightened to 3.5 N·m. The handle seals in OFF or ON position with a 0.7 mm cable for lockout/tagout compliance.
Integration notes
Dimensions: 81 mm high, 54 mm wide, 73 mm deep — fits standard 35 mm DIN rail with 6 module spaces. Wire stripping length is 15 mm; the tunnel terminal accepts solid 1...50 mm² or flexible 1.5...35 mm². Rated insulation voltage 500 V AC, operational voltage 230...400 V AC. The breaker is rated for 5000 electrical cycles and 20000 mechanical cycles — sufficient for distribution duty where switching is infrequent. Separate earth-leakage protection block available if needed (not integrated).