Ring Terminals isolated colour: yellow Compatible Ink Cartridges for cables Nominal cross section: 4.0 to 6.0 mm² Features: Maximum electrical power: 600 Volts Max. Operating Temperature: 75 °C. Material: Cover: Electro tin-plated copper Insulation Material: PVC Design: You dont need to carry different cables into the connector insertion and squeeze with a pair of pliers. The installation should be done by a professional. For Unsachgemäß have carried out installation we assume no liability