Surge arrester spd

1.ProductApplication SPDseriessurgeprotectivedevice(herebelowcalledSPD)issuitableforusingintheIT,TT,TN-C,TN-S, TN-C-SandetcpowersystemofAC50/60HZ,Ratedvoltageupto380V,toprotectfromdirectandindirect lightningimpulseorothertransientovervoltage.ClassIsurgeprotectivedevice.ProtectionclassB SPDinincompliancewithGB18802.1/IEC61643-1Standards. 2.OperationElements SPDasonlyonesideofterminals,abletopreventfrombeingelectrictouching,indoorfixedlymounted, limitingvoltage.SPDhasbuiltindisconnector,whenSPDisinvalidduetooverheatingorbreakdown, thedisconnectorcanautomaticallyseparateSPDfromthenetwork,meanwhilesendanindicationsignal, Thevisiblewindowshowwhitecolorinnormalservice.Iftobeseparatedfromnetworkitwillshowredcolor. 1P+N,2P+N,3P+N SPD consist of 1P,2P,3P SPD and NPE neutral and earthing protection modules, use in the power supply system of TN-S, TN-C-S and etc. 3.Main specs data Modelandspec SPD-C10/20KA Numberofpoles 1P 2P 3P 4P Networkservicevoltage 220 380 MaxicontinuousoperatingvoltageUn(V) 220/320 385/420 VoltageprotectivelevelUp(Kv) 0.8/1.5 0.8/2.0 Maxidischargingcurrent(8/20us)Imas(kA) 10 Norminaldischargingcurrent(8/20us)In(kA) 20 Responsetime <25 Protectiongrade IP20 Application Secondaryprotectionforinline