Porcelain Connector, feature:30A 3 wires, good quality&better price for porcelain connector, more kinds available. ... .VOLTAGE:250V,300V,450V,600V4.STYLE:1WIRE,2WIRES,3WIRES5.FITTINGS:COOPER,IRON,ALUMINUM,NICKELPLATE6.MOQ:1X20'FT7.PACKAGE:EXPORTED STANDARD CARTON ...