Deutsch HD30 Series Plug with an attached shell adaptor and cable clamp. Size 24 shell or 43mm diameter. Contains 23 size 16 sockets. Size 16 contacts are rated at 13A per circuit. These industry proven connectors are environmentally sealed to IP67 standards. Able to be used in both inline and bulk head applications. They have a quick connect bayonet style coupling. Specifically designed for the truck, mining and construction industry.