The iMATE 23 2P Male PC Tail Receptacle 16 AWG has an ingress protection rating of IP67, IP68 and IP69K. The Amperage Rating for these Plug Tail Receptacles is up to 13A and Voltage Rating (RMS) is up to 300V. The Basic Plug Max. OD Over Coupling Nut is 0.75in and these plug tail receptacles also have a Receptacle D Hole Mounting of 0.60in. DIA. / 0.57in. to the flat. For additional details please refer to the specifications section below.