THWN or THHN - USA Wire & Cable

1 THWN or THHNPVC Insulation, Nylon Jacket, 600 VoltsAPPLICATION: General purpose wiring in accordance with the NationalElectrical Code, maximum conductor temperature of 90 C in dry locationsand 75 C in wet locations, 600 volts, for installation in conduit or otherrecognized raceway. Also used for wiring of machine tools (stranded), ap-pliances, and control circuits not exceeding 600 :1. Listed by UL as Type THHN or THWN per Standard 83, and as TypeMTW per Standard 1063 (stranded items).2. Listed by UL as Gasoline and Oil Resistant Listed by UL as Sunlight Resistant (1/0 AWG and larger, black only).4. 1/0 AWG and larger pass UL and IEEE-383 ribbon burner flame testand are listed For CT Listed by UL as 105 C Appliance Wiring Material, 60 C where exposedto oil (stranded items only).

2 6. C(UL) listed as Type T90 Nylon or TWN75, Conforms to Federal Specification : Annealed uncoated copper conductor, PVC insulation,nylon jacket, surface MilsNom-NEC Ampacity*Approx. ftAWGPVC final75 C90 CUSAWCorNo. #kcmilStrandstionJacketInchesTHWNTHHNNet CopperSolid(THWN or THHN) (MTW or THWN or THHN) *Ampacity in accordance with NEC for not more than three conductors in raceway. 6301 EAST STASSNEY LANE, SUITE 100 AUSTIN, TEXAS 78744, USA 1-800-880-9473, FAX 512-443-6329, 600 Volts1. This specificationdescribessingleconductor THWNor THHN,a general purpose buildingwireinsulatedwithpolyvinyl chloride (PVC)and coveredwith a toughprotectivesheath of nylonintended for lighting and powercircuits at 600 Volts or less,inresidential,commercial andindustrial wire maybeoperated at 90 Cmaximum continuous temperatureindry locations and 75 Cinwet locations and islisted byUnderwritersLabora-tories for useinaccordancewithArticle 310 of the NationalElectrical wireshallalsobeC(UL)

3 Listed asTypes T90 Nylon or TWN75,FT1indicating suitabilityfor useinaccordancewith theCanadian The following standardsform a partof thisspecification to the extent LaboratoriesStandard 83 forThermoplasticInsulated underwriters laboratories Standard1063 for Machine-Tool Wiresand Cables (Stranded itemsonly). underwriters LaboratoriesStandard 758 for 105 C Appliance WiringMaterials (Strandeditemsonly). CSA Standard and Electrical Bulletin Type Conductorsshall be solid,Class B or Class Cstranded,annealed uncoatedcopper per UL Standards 83 Eachconductorshall be insulated with PVC andsheathedwith nyloncomplyingwithrequirements of UL Standard83 for TypesTHHN or THWN,UL Standard 1063 for Type MTW and CSA for T90 ,TypesTHWN or THHN shallcomplywith theoptional Gasoline and Oil ResistantIIrating of ULStandard 83.

4 Theinsulationonstranded sizes shall alsocomplywith ULrequirements for 105 C ApplianceWiring The average thickness ofPVC insulation, for agivenconductorsize,shallbeas specifiedinUL Standard 83 forTypes THWNorTHHN. The minimumthickness at anypoint, of the PVCinsulation,shall be not less than 90%ofthe specifiedaverage minimum thickness at any point of the nylon sheath, shallbeas specifiedinUL Standard 83 forTypes THWN or PVCinsulation shallbeapplied tightly to the conductor The wire shallbeidentified bysurface markingindicating manufacturer'sidentification,conductorsi ze and metal,voltagerating, ULSymbol,typedesignations wire shall also beidentified asC(UL)

5 TypeT90 Nylon or TWN75, Wire shallbetestedinaccordancewith therequirements of UL Standard 83for Types THWN or THHN wire andfor the optionalGasoline and Oil ResistantIIlistings; asType MTW to UL Standard1063 (strandeditems);asAWM to UL Standard 758(strandeditems); and asC(UL)Type T90 The wire shallbear the UnderwritersLaboratorieslabels forTypes THWN or THHN(solidconductors) andTypeMTW (strandedconductors) andthe C(UL)label forTypes T90 Nylon orTWN75, 6301 EAST STASSNEY LANE, SUITE 100 AUSTIN, TEXAS 78744, USA 1-800-880-9473, FAX 512-443-6329.