Full Technical Description: Epoxy Powder Coated Copper-Free Aluminum Material; UL 1203, CSA C22.2 Approval; 480 Volt AC/DC Voltage Rating; 20 Amp Current Rating; Water Tight; 0.375 to 0.5 Inch Cord Size; Nipple Size 3/4 Inch; Used on 18 Thru 12 AWG 3-Conductor Type S or SO Cord; Applicable Standard Nec/Cec; ECC Model