Straight Blade Plug Connection Orientation Straight Current Rating 20 A Grounding Non-Grounded Horsepower Rating 1 hp 2 hp Housing Color Black IP Rating IP20 NEMA Plug Configuration 10-20P Number of Blades 3 Number of Poles 3 Phase Single Polarized Yes Resistance Properties Corrosion Resistant Voltage Rating 125/250V AC Wire Connection Type Screw Terminals Wiring Style Standard For Maximum Cable Diameter 0.78 in For Minimum Cable Diameter 0.385 in Grade Industrial