✅ CHINT NB1-63 C63 Miniature Circuit Breaker – 2P, 63A, C Curve, 6kA Breaking Capacity Description (English): The CHINT NB1-63 C63 is a heavy-duty double-pole miniature circuit breaker (MCB) engineered for high-current dual-phase protection in residential, commercial, and light industrial systems. With 2 protected poles and a rated current of 63A, it is ideal for circuits supplying large motors, HVAC systems, industrial outlets, and machinery. The device features a C tripping curve and a short-circuit breaking capacity of 6kA at 230/400V AC per EN/IEC 60898-1, and up to 50kA per EN/IEC 60947-2. It offers reliable overload and short-circuit protection for demanding applications. Equipped with a toggle switch, a VisiTrip fault indicator for fast diagnosis, and a VisiSafe strip for visual confirmation of isolation, this breaker ensures user safety during maintenance. It is compact (36mm width), DIN rail mountable, and fits modern electrical panels with ease. With 20,000 mechanical cycles and 10,000 electrical cycles, it delivers excellent durability. Additional specs include 500V insulation voltage, 6kV impulse withstand voltage, and IP20/IP40 protection in enclosures. Specifications (English): Model: NB1-63 Poles: 2P Rated Current [In]: 63A Curve Type: C Breaking Capacity: 6kA at 230/400V AC (EN/IEC 60898-1) Insulation Voltage [Ui]: 500V AC Impulse Voltage [Uimp]: 6kV Standards: EN/IEC 60898-1, EN/IEC 60947-2 Mounting: DIN rail, 2 pitch (36mm width) Protection Class: IP20 (IP40 in enclosure) Operating Temperature: -35°C to +70°C Mechanical Life: 20,000 cycles Electrical Life: 10,000 cycles Tightening Torque: 2 Nm Wire Capacity: 1–25mm² (rigid), 1–16mm² (flexible)