The A9F75204 is a two‑pole (2P) miniature circuit breaker from Schneider Electric’s Acti9 iC60N range, rated at 4 A with a D‑curve tripping characteristic (magnetic trip at 12 × In). The D‑curve is specifically engineered for circuits that draw high inrush currents – such as motor starters, transformers, solenoid valves, and capacitive loads – where B‑ or C‑curve breakers would be prone to nuisance tripping. This 2‑pole device protects both poles simultaneously, ensuring complete line isolation in single‑phase AC or DC installations. What truly distinguishes this model is its exceptional ultimate breaking capacity of 50 kA at 380‑415 V AC (IEC 60947‑2) and 6 kA at 400 V AC (IEC 60898‑1), delivering robust fault clearing in demanding industrial and commercial environments. Certified to both industrial and residential standards, it offers versatile deployment across diverse projects. The breaker incorporates the intuitive VisiTrip indicator, which instantly identifies the tripped pole to speed up fault diagnosis, and the VisiSafe green strip that provides clear visual proof of contact opening – a critical safety feature for maintenance work. Its quick‑make/quick‑break mechanism, independent of handle position, ensures consistent performance over 10,000 electrical and 20,000 mechanical cycles. With a compact 36 mm width (4 modular pitches) and DIN‑rail mounting, it saves panel space, while the double‑tunnel terminals accept conductors up to 25 mm² (rigid) and 16 mm² (flexible) with a 2 N·m torque. Operating from -35 °C to +70 °C, this MCB is built with halogen‑free plastics and PVC‑free materials, achieving 54% recyclability and a total lifecycle carbon footprint of 28 kg CO₂ eq. – all reflecting Schneider Electric’s commitment to sustainable, high‑performance power distribution.
