Insulation piercing connectors (IPC) for low voltage with highly climatic and mechanical resistant insulating bodyEasy to install and safe to use, with simultaneous insulation piercing on main and tap controlled by shear head screw. Once shear head is broken removal remains possible. Potential free tightening screws.No cable stripping required, range taking Hard end caps along with superior sealing materials provides reliable insulation over time. For insulated aluminum and copper insulated conductors.To be used on the bare main conductor with the blue insert 'UNI'.