THHN wire is a conductor used primarily in conduit and raceway applications for branch circuits, services, and feeders in commercial and industrial designs as specified in the National Electrical Code 2. It is suitable for dry locations with temperatures under 90°C, or wet and oil or coolant applications when temperatures are under 75°C. The wire conforms to UL certifications for 600 volt conductors. Length: 100 Feet Insulation: PVC (0.015 Thick) with Nylon Jacket Type: THHN Stranded (19/27) Building Wire Color: Red Voltage Rating: 600 Volts Manufacturer United Industries Item model number 14STRREDTHHN100 Product Dimensions 3.5 x 3.5 x 3.25 inches; 1.6 Pounds Is Discontinued By Manufacturer No