NEMA 6-15 Plug Male to 6-15 Receptacle (6-20 Receptacle) Female. Used 12 AWG stranded copper inner wire support max 20 AMP loading, 250 Volts, 5000 Watts. Pins and terminals are made with nickel-plated brass to prevent oxidation rust. 100% copper wire conductor inside Heavy-duty power adapter cord. Length: 3, 6, 10, 16, 25, 50, 100FT (Feet)