Manufacture VSD Frequency Converter 220V 380V Variable Speed Drive 50hz 60hz 5.5KW 11KW 15KW 7.5KW Frequency Inverter VFD $98.71 Min. order: 1 piece Surge protective protector 40kA 4p 4 pole 4pole SPD 20kA-40kA 1000V T2 power DC PV surge protection devices for solar system $6.62 Min. ord...