The Smart-Joint is a cable joint which is pre-filled with an insulating and waterproof filling mass. It is suitable for cable diameters up to 15.7mm and can be used inside and outside as well as underground. Ready to use, the Smart-Joint is supplied ‘pre-filled’ with the insulating filling mass for quick and easy installation. The double branch-off joint is provided with 4 pre-installed connectors and one earth connector.