Full Technical Description: In Line With Barrier Type; 1-15/16 Inch L X 1 Inch W X 1-1/8 Inch H Size; 6 AWG min. Conductor Size; 250 MCM Max. Conductor Size; Aluminum/Copper Conductor Material; UL 486-B, CSA Approval; Electro Tin Plated High Strength Aluminum Alloy Body Material; No Insulation Type; 2 Screw(S); SR Model