This locking plug has three poles, three phases, a voltage rating of 600V AC, and an operating temperature range of -40 Degrees C to 75 Degrees C. It has the following resistance properties: chemical resistant, impact resistant, plus it measures 3.03 inch L. This locking plug meets the standards for CSA and UL. It is yellow, and has 8 AWG minimum wire size to 4 AWG maximum wire size.