Brand: Bryant Item: Plug Housing Material: Nylon Color: Black and white Number of Poles: 4 Application: Industrial heavy duty Voltage Rating: 277/480 VAC Amperage Rating: 20A Wire Size: 18-8 AWG Configuration: NEMA L22-20 Number of Phases: 3 Number of Wires: 5 With Cap: No Cord Diameter: 0.46-1.15in Blade Type: Locking Self-grounding: No Copper Wire Only: No Bryant industrial heavy duty locking blade plug, 20A, 277/480 VAC, 3-phase, 4-pole, 5-wire, NEMA L22-20, accepts cord size 0.46-1.15in, nylon housing, black and white.