The Schneider Electric A9N60709 is a 1-pole Acti9 C120 miniature circuit-breaker rated for 100 A at 40 °C. It uses a thermal-magnetic trip unit with a C-curve — magnetic trip triggers at 8 x In ±20%, so it's sized for general-purpose distribution loads like lighting, small motor circuits, and mixed resistive-inductive panels where moderate inrush is expected. Breaking capacity is 5 kA Icu at 230...400 V AC, 50/60 Hz, certified to EN/IEC 60947-2. The limitation class is 3 per EN/IEC 60947-2, meaning it lets through less let-through energy than a class-1 breaker, which helps with downstream device coordination.
Takes 3 x 9 mm pitches of rail space — 27 mm wide. Tunnel terminals accept 1...50 mm² rigid or 1.5...35 mm² flexible cable. IP20 finger-safe front. Padlockable toggle for lockout/tagout.
Standards and environmental
Electrical durability 5000 cycles, mechanical 20000 cycles.