Locking Plug Connection Orientation Straight Current Rating 30 A Housing Color Black White Housing Material Composite NEMA Plug Configuration L14-30P Number of Blades 4 Number of Poles 3 Phase Single Polarized Yes Resistance Properties Chemical Resistant Impact Resistant Voltage Rating 125/250V AC Wire Connection Type Screw Terminals Wiring Style Standard Face Diameter 1.89 in For Maximum Cable Diameter 1.15 in For Minimum Cable Diameter 0.465 in Grade Industrial