Southwire 22974057 Building Wire, Type Thhn, 500' White Southwire Type THHN is a multi-purpose building wire used in conduit and cable trays for service, feeders and branch circuits in commercial and industrial applications as specified in the 2008 National Electrical Code. Suitable for use in dry locations at temperatures not to exceed 90C. Southwire Type THHN copper conductors are annealed (soft) copper, insulated with a tough heat and moisture resistant polyvinyl chloride (PVC), over which a nylon (polyamide) or UL-listed equal jacket is applied. Length: 500' Volts: 600V Color: White Annealed (soft) copper Type THHN Heat and moisture resistant polyvinyl chloride (PVC) Nylon jacketed thermoplastic Suitable for use in dry locations at temperatures not to exceed 90C Primarily used in conduit and cable trays for services, feeders, and branch circuits in commercial or industrial applications Plastic spool. Features Length: 500' Volts: 600V Color: White Annealed (soft) copper Type THHN USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.