Hubbell Wiring Device-Kellems female receptacles are designed to provide an electrical outlet and accept plugs for connecting devices to a power source. These receptacles are have 4 or 6 copper wires for conducting electricity efficiently. The maximum ampeareage output of these conductors is rated at 30A. They are covered with a PVC / MTW jacket for protecting conductors and providing insulation. Choose from a wide range of receptacles, available in 4 and 6 wire plug variants.