Locking Plug Connection Orientation Straight Current Rating 30 A Housing Color Black White Housing Material Nylon NEMA Plug Configuration L15-30P Number of Blades 4 Number of Poles 3 Phase Three Polarized Yes Resistance Properties Chemical Resistant Impact Resistant Voltage Rating 250V AC Wire Connection Type Screw Terminals Wiring Style Standard Face Diameter 2.21 in For Maximum Cable Diameter 1.15 in For Minimum Cable Diameter 0.35 in Grade Industrial Grounding Grounded