This flanged locking inlet has three poles, is single phase, a voltage rating of 125/250V AC, and an operating temperature range of -40 Degrees C to 75 Degrees C. It has the following resistance properties: corrosion resistant, moisture resistant, watertight. This flanged locking inlet meets the standards for UL. It is silver, and has 6 AWG minimum wire size to 6 AWG maximum wire size.