✅ CHINT NB1-63H C50 Miniature Circuit Breaker – 3P, 50A, C Curve, 10kA Breaking Capacity Description (English): The CHINT NB1-63H C50 is a 3-pole miniature circuit breaker (MCB) designed for secure and efficient protection of three-phase circuits carrying higher loads. With a 50A rated current and a C curve tripping profile, it is well-suited for heavy-duty equipment, HVAC systems, industrial motors, and power distribution applications. It features a high short-circuit breaking capacity of 10kA at 400V AC, offering reliable protection against faults and overloads. Fully compliant with international standards EN/IEC 60898-1 and EN/IEC 60947-2, this breaker is ideal for use in both residential and industrial electrical panels. The NB1-63H C50 includes a toggle actuator for manual control, a VisiTrip indicator for quick fault detection, and a VisiSafe visual strip for confirmation of safe isolation. The compact form (54mm wide – 6-pitch) is optimized for DIN rail installation in modular switchboards. Additional features include a rated insulation voltage of 500V, 6kV impulse withstand, and a durable lifecycle of up to 20,000 mechanical and 10,000 electrical operations. Operating temperature range: -35°C to +70°C. Specifications (English): Model: NB1-63H Poles: 3P Rated Current [In]: 50A Curve Type: C Breaking Capacity: 10kA at 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, 6 pitch (54mm 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)