ULG wire connectors employ a specially designed, wire insulation displacement contact to make a reliable electrical connection to each wire. A ‘live-spring’ joint is made by driving the wire down into the ‘U’ contact connector. This simple process displaces the insulation and grasps all conductors with a firm, resilient pressure, all in one motion. No stripping of wire insulation required. ULG connectors include a factory-installed sealant to protect against corrosion and seal out moisture. Suitable for 0.5mm wire.