The S761KS15 is a Sealed Power Plug with thermoplastic insulator and tin-plated copper alloy terminals. DC power connector has tip insulator and 0.150 to 0.175 inch outer diameter range cable. Sealed power plug provide a great waterproof alternative to the standard power plug. With an IP 68/NEMA 250 (6P) rating this series of product is perfect for any type of environment.