Product introduction: The NBT1-63 miniature circuit breaker is designed for protection against overload and short circuit in AC 50Hz/60Hz applications, with a rated voltage of 230V/400V and rated current ranging from 1A to 63A. It can also be used for non-frequent switching operations under normal conditions. Product features: 1. Compliant with IEC/EN60898-1. 2. Equipped with an indicator function showing the contact position. 3. Supports bilateral busbar wiring for broader application flexibility. 4. Maximum connection capacity of 25mm², wiring torque of 3N·m, suitable for various installation equipment. Product specifications: Product Model: NBT1-63 Pole: 1P, 2P, 3P, 4P Rated Current (A): 6, 10, 16, 20, 25, 32, 40, 50, 63 Rated Voltage (V): 230/400, 400, 400, 400 Breaking Capacity (kA): 6 Color: White Characteristic Curve: C Working Temperature: -5°C to +40°C Enclosure Class: IP20 Standard: IEC60898-1 Frequency: 50/60Hz Electrical Life: Not less than 8,000 cycles Mechanical Life: Not less than 20,000 cycles