Pass & Seymour Heavy Duty Dual Power Angle Plug, 250V, BlackInterchangeable blades allowing either a 30A, or 50A, configuration. Ul listed for use with aluminum wire. Dead front design. 30A 50A 250V Color: Black 2 pole, 3 wire grounding Heavy duty dual power angle plug NEMA 6 30 6 50, UL Federal specification, CSA Interchangeable blades allowing either a 30A, or 50A, configuration Ul listed for use with aluminum wire Dead front design Box.