Porcelain Connector 1.Material:Porcelain,Radio ceramic 2.Current:5A-250A 3.CE.VDE certification 30A 2Wire 5Holes ceramic terminal block1.Material:porcelain,radioceramic Material: Ceramic (Steatite Ceramic & Alumina) Material Fittings: Copper. Iron. Alumina (Zincification & Nickelplate)2.Current: 5A-250A3.Voltage:250v,300v,450v,600v4.Style:1wire,2wires,3wires5.Fittings:cooper,iron,aluminum, ...