Insulated with dielectric strength plastisol for tough mechanical protection|Molded for precise fit and supplied with removable access plugs over the hex screws|Eliminates the need for cover and taping|Will not support combustion|Not recommended for fine stranded, flexible wire|Dual rated multi-conductor connector for use with copper and/or aluminum cables|One-Side Wire Entry, Form secure connections between 4 conductors quickly using the single-side entry ports sized for wires between 4 and 14 AWG|Ergonomic Design, Rounded corners and a smooth exterior finish over the plastisol insulation make Polaris connectors comfortable to grip|Removable Plugs, Each port and adjustable set screw is covered by a secure plug to prevent debris, moisture or contaminants from entering the insulated connector|Pre-filled Oxide Inhibitor, All 4 single-side entry ports come pre-filled with an oxide inhibitor gel to prevent corrosion and provide low-contact resistance|Professional Performance, The durable layer of insulation on each Polaris connector is UV, abrasion and chemical-resistant for reliable performance