Inlet, Enclosure NEMA 3R, IP54/IP55, Wiring Capacity 4 To 4/0 AWG, Polarity 3 Pole, Neutral, Ground, Short Circuit Rating 10 KAMP, Standard: UL, IEC, CE, Size: 5.12 DIA X 3.11IN, Amperage Rating: 250AMP, Voltage Rating: 277/480V, Material: Metal, Color: B