... years and with the export experience of more than 10 years,manufacturing according to the ISO9001 quality control system ... .3.Main technical data Rated current InA1,2,3,4,6,10,16,20,25,32,40,50,63ElectricalfeaturesPoles1P, ... frequency50/60HzRated breaking capacityA10000Energy limiting class3Rated impulse withstandvoltage (1.2/50)UimpV6000Dielectric test voltage atind .Freq.for 1minkV2Pollution degree ...