Insulated Multitap Connector Body Material Aluminum Color Black Finish Plastisol For Conductor Material Aluminum Copper For Stranded Copper Wire Size - Minimum 4 AWG For Stranded Copper Wire Size - Maximum 500 kcmil Head Style Hex Hex Size 5/16 in Insulation Material Plastisol Maximum Operating Temperature 194 Degrees F Maximum Voltage 600 V Number of Ports 2 RoHS Compliant Yes Standards cULus UL 486A Compatible with Product Type Copper and Aluminum Cables