✅ CHINT NB1-63 C25 Miniature Circuit Breaker – 2P, 25A, C Curve, 6kA Breaking Capacity Description (English): The CHINT NB1-63 C25 is a double-pole miniature circuit breaker (MCB) designed for enhanced dual-phase circuit protection in residential, commercial, and light industrial installations. With a rated current of 25A and a C tripping curve, it is suitable for moderately inductive loads such as power outlets, small machinery, and HVAC units. The device offers a rated short-circuit breaking capacity of 6kA at 230/400V AC (per EN/IEC 60898-1), and up to 50kA (per EN/IEC 60947-2), providing excellent fault and overload protection on both phases. It features a manual toggle actuator, a VisiTrip fault indicator for easy diagnosis, and a VisiSafe strip for clear visual confirmation of safe isolation. The unit is DIN rail mountable with a compact 36mm width (2 pitch). Built for long-term reliability, the breaker offers a mechanical life of up to 20,000 cycles and an electrical life of 10,000 cycles. It is ideal for balanced load applications in both residential distribution boards and commercial panels. Additional specifications include a 500V insulation voltage, 6kV impulse withstand voltage, IP20/IP40 enclosure protection, and wide temperature operating conditions from -35°C to +70°C. Specifications (English): Model: NB1-63 Poles: 2P Rated Current [In]: 25A 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)