Buchanan, Breakaway In-Line Kits, Non-Fused, Voltage Rating: 600 V, Amperage Rating: 30 AMP, Line Side Insulation Diameter: .120 - .430 IN, Load Side Cable Size: 4 or 2 AWG, Line Side Cable Size: 4 or 2 AWG, Line Side Crimp Type: Copper, Load Side Crimp Type: Copper, Load Side Insulation Diameter: .