✅ CHINT NB1-63H C25 Miniature Circuit Breaker – 1P, 25A, C Curve, 10kA Breaking Capacity Description (English): The CHINT NB1-63H C25 is a single-pole miniature circuit breaker (MCB) designed for reliable protection in distribution circuits found in residential, commercial, and light industrial environments. With a rated current of 25A and a C tripping curve, it is well-suited for circuits supplying moderate inductive loads like socket outlets, control panels, and lighting systems. This MCB offers a high short-circuit breaking capacity of 10kA at 230V AC, certified under EN/IEC 60898-1. It also conforms to EN/IEC 60947-2 standards, ensuring it performs well in both residential and industrial-grade installations. The breaker includes a toggle actuator for manual operation, a VisiTrip indicator for fast fault detection, and a VisiSafe strip for secure disconnection confirmation. Its compact 18mm width fits easily onto a standard DIN rail (2-pitch). Built for endurance, the NB1-63H C25 features up to 20,000 mechanical and 10,000 electrical operating cycles. It supports an insulation voltage of 500V, an impulse withstand voltage of 6kV, and has an IP20 protection rating (up to IP40 when installed in enclosure). It is suitable for operation in environments ranging from -35°C to +70°C. Specifications (English): Model: NB1-63H Poles: 1P Rated Current [In]: 25A Curve Type: C Breaking Capacity: 10kA 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)