The A9F84201 is a two‑pole (2P) miniature circuit breaker from Schneider Electric’s Acti9 iC60H range, rated at just 1 A with a C‑curve tripping characteristic (magnetic threshold at 8 × In). Designed to protect both poles simultaneously, this 2‑pole device ensures complete disconnection of phase and neutral in single‑phase AC systems or both lines in DC installations, delivering enhanced isolation and safety for the most sensitive circuits – including control transformers, electronic power supplies, instrumentation, signal lines, and PLC input/output modules, where even small overcurrents can damage delicate components. Despite its ultra‑low 1 A rating, this MCB delivers an exceptional ultimate breaking capacity of 70 kA at 220‑240 V AC (IEC 60947‑2) and 10 kA at 400 V AC (IEC 60898‑1), guaranteeing reliable fault clearing even in high‑fault‑current industrial environments. It is dual‑certified to both industrial and residential standards, offering flexible deployment across control panels, distribution boards, and specialised equipment protection. The breaker features the intuitive VisiTrip indicator, which instantly identifies the tripped pole for fast 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 reliably from -35 °C to +70 °C, this MCB is built with PVC‑free materials and achieves 54% recyclability, though it contains halogen above thresholds. Its total lifecycle carbon footprint is quantified at 27 kg CO₂ eq., reflecting Schneider Electric’s transparent environmental reporting.
