1.size:28*51*22mm 2.3 wires 3.Different sizes,different colors according to customer's requirment 4.three terminal holes Specification as following or according to customer's specific requirement:Product nameporcelain terminal blocksElectric Pressure250V,380V,500VElectric current5A,15A,30A,60AMain materialceramic body Metal accessoriesbrass,copper(brass) with nickle plated,iron screwUsageconnect ...