applicable to circuit with rated voltage up 400V AC, rated frequency 50/60Hz ... of poles1P,1P+N,2P,3P,3P+N,4PRated Current(In)1,2,3,4,6,10,16,20,25,32 ... 230(240)/400(415)VRated frequency50(60)HzCurveB,C,DShort-circuit breaking capacity(Icn)10000A (10kA)Magnetic releases operateB curve: between ... 3 and 5 In C curve: between 5 and 10 In D curve: between 10 and 20 InEndurance ...