Wire Connector, Body Material Aluminum Alloy, Color Black, Finish Insulated, For Conductor Material Aluminum, Copper, For Stranded Copper Wire Size - Minimum 14 AWG, For Stranded Copper Wire Size - Maximum 1/0 AWG, Head Style Hex, Hex Size 3/16 in, Insulation Material Plastisol, Maximum Operating Temperature 194 Degrees F, Maximum Voltage 600 V, Number of Ports 4, RoHS Compliant Yes, Standards UL 746C 750 Degrees C Glow Wire, UL Listed 486A/B Wire Connector