✅ CHINT NB1-63 C20 Miniature Circuit Breaker – 1P, 20A, C Curve, 6kA Breaking Capacity Description (English): This CHINT NB1-63 is a low voltage miniature circuit breaker (MCB) built for efficient protection in residential, commercial, and light industrial systems. It is a 1P circuit breaker with 1 protected pole, a rated current of 20A, and a C tripping curve, making it ideal for power sockets, HVAC loads, and moderate inrush current circuits. With a breaking capacity of 6kA at 230V AC in compliance with EN/IEC 60898-1 and up to 50kA at 220–240V AC under EN/IEC 60947-2, it delivers excellent defense against overloads and short-circuit faults. The device is equipped with a manual toggle switch, trip indicator (VisiTrip), and visual isolation status (VisiSafe). It is certified for both residential and industrial standards, ensuring safety and ease of maintenance. Its mechanical lifespan reaches 20,000 cycles, and electrical endurance up to 10,000 cycles. DIN rail compatibility and a compact 18mm width (2-pitch) design make it suitable for modular distribution panels. Other key specifications include a rated insulation voltage of 500V, impulse withstand voltage of 6kV, IP20/IP40 protection in enclosure, and an operating temperature range of -35°C to +70°C. Specifications (English): Model: NB1-63 Poles: 1P Rated Current [In]: 20A Curve Type: C Breaking Capacity: 6kA at 230V 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 (18mm 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)