30A, 250V, Black & White, 3 Pole 4 Wire Grounding, Item contains 4 Physical Prongs, Locking Plug, NEMA L15-30p, UL, Federal Specification, CSA, High Strength Brass Alloy Blades Resist Heat Rise, Wiring Terminal Are Color Coded & Are Back Out Ready To Wire, Amperage Voltage & NEMA Rating Are Hot Stamped On Device For Clear Identification, Matching Connector True Value #827-474, Box.