Product introduction NBT1-63 miniature circuit breaker is mainly used for protection against overload and short circuit under the AC 50Hz/60Hz, rated voltage 230V/400V and rated current from 1A to 63A. It also can be used for non-frequent on and off switch operation under normal circumstance. Product features 1. In complicance with IEC/EN60898-1. 2. With indicator function in the contact position. 3. Bilateral busbar wiring capabilities to adapt to the wider use of premises. 4. Maximum connecting ability of 25mm2, wiring torque 3N*m, applicable to a variety of installing equipments. 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 Colour White Characteristic Curve C Working Temperature -5 ~+40 Enclosed Cla IP20 Standard IEC60898-1 Frequency 50/60Hz Electrical Life Not le than 8000 times Mechanical Life Not le than 20000 times