... are mainly used for the overload and short circuit protection of the motor in AC50/60HZ,up to 660V,0.1 ... Ac3 load or for the overload and short circuit protection of the circuit and power equipment in the power distribution network ... : 220,380,415,440,500,660VRated current : 1-80 AFrequency: 50/60HzNumber of pole : 3 Poletypes : CV1-M,GV2-M,GV2-ME ...