Full Technical Description: 3.94 Inch Length X 1 Inch Width X 1.13 Inch Height Size; 6 AWG Stranded min. Conductor Size; 250 kcmil Max. Conductor Size; Copper/Aluminum Conductor Material; UL 486A/486B, CSA Approval; 600 Volt Voltage Rating; Aluminum Alloy Body Material; Non-Insulated Insulation Type; 4 Screw(S); 5/16 Inch Hex Size; RoHS Compliant; Temperature Rating 90 Deg C