✅ CHINT NB1-63H C3 Miniature Circuit Breaker – 1P, 3A, C Curve, 10kA Breaking Capacity Description (English): This CHINT NB1-63H is a high-breaking capacity miniature circuit breaker (MCB) designed for dependable circuit protection in residential, commercial, and automation environments. It is a 1P device with 1 protected pole, rated at 3A, and features a C tripping curve, ideal for moderate inductive loads and general-purpose circuits. The MCB delivers a short-circuit breaking capacity of 10kA at 230V AC in accordance with EN/IEC 60898-1, making it suitable for installations that require higher safety margins. Built with a manual toggle switch, VisiTrip fault indicator, and VisiSafe mechanical isolation strip, the NB1-63H C3 ensures safe operation, easy maintenance, and quick fault identification. Its compact 18mm width fits seamlessly on 2-pitch DIN rails. Additional features include 500V insulation voltage, 6kV impulse withstand voltage, long life performance (20,000 mechanical and 10,000 electrical cycles), and protection rating IP20 (IP40 when in enclosure). It is fully compliant with both EN/IEC 60898-1 and EN/IEC 60947-2 standards. Specifications (English): Model: NB1-63H Poles: 1P Rated Current [In]: 3A 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)