The A9F77306 is a three‑pole (3P) miniature circuit breaker from Schneider Electric’s Acti9 iC60N series, rated at 6 A with a C‑curve tripping characteristic (magnetic threshold at 8 × In). As a 3‑pole device protecting all three phases simultaneously, it is specifically designed for three‑phase AC systems where complete isolation of all lines is essential – making it a core component for industrial control panels, motor control centres, lighting distribution boards, and commercial power distribution networks. The C‑curve provides an optimal balance between overload protection and tolerance of moderate inrush currents, making it a versatile and reliable choice for a broad spectrum of general‑purpose applications, including lighting circuits, socket outlets, small motor feeders, and HVAC equipment. This MCB delivers a robust ultimate breaking capacity of 20 kA at 220‑240 V AC (per IEC 60947‑2) and 6 kA at 400 V AC (per IEC 60898‑1), ensuring dependable fault clearing in demanding three‑phase installations. It is dual‑certified to both industrial and residential standards, offering flexibility across project types. 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 54 mm width (6 modular pitches) and DIN‑rail mounting, it optimises 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 24 kg CO₂ eq., reflecting Schneider Electric’s commitment to transparent environmental reporting.
