3M™ Scotchlok™ Electrical Insulation Displacement Connector electrically connects a (tap) wire end to a through (run) wire, while insulating the connection. This connector is greased and provides a moisture-resistant connection. This connector is greased and provides a moisture-resistant connection. It is also flame retardant and is designed for tape and parallel splicing. It features a maximum insulation O.D. diameter of 0.155 inches (3.9 mm) and an operating temperature of 221 degrees Fahrenheit (105 degrees Celsius). The suggested application tool for the 3M™ Scotchlok™ Electrical Insulation Displacement Connector, 314, is the 3M™ Scotchlok™ Crimping Tool, E-9BM.3M™ Scotchlok™ Insulation Displacement Connector 314 is 600V rated for building wire and 1000V rated for signs, fixtures and luminaires. It withstands temperatures of 221 degrees F (105 degrees C). UL Listed, CSA Certified and RoHS 2011/65/EU Compliant.