Contact characteristicsIEC Conventional free air thermal current Ith A 40Rated insulation voltage Ui IEC/EN V 1000Rated impulse withstand voltage Uimp kV 8Operating current IeAC21A400V A 40500V A 40690V A 40AC22A400V A 40500V A 40690V A 40AC23A400V A 40500V A 25690V A 25Power dissipation per pole ma..