Standard: IEC/EN60898-1 GB/T10963.1 Instantaneous trip type: Electronic /Electromagnetic The number of poles: 1P+N/3P+N Rated limit short circuit breaking capacity (Inc): 6kA Rated working current (In): 16-63A (can be extended to 125A) Rated working voltage (Ue): AC 230/400V Rated operating frequency: 50/60Hz Rated impulse withstand voltage (Uimp): 4kV Rated residual operating current : 10/30/100/300mA Mechanical/electrical life: 4000/4000 Times Type of residual current : A/AC