Products / Building wire

Building wire

600 V and 2 kV single conductors in copper and aluminum for services, feeders and branch circuits.

Four Type THHN/THWN-2 building wires side by side, black, red and blue 500 kcmil phase conductors and a smaller green grounding conductor, each stripped to show the nylon jacket, PVC insulation and stranded copper.
  • Each conductor, outside to inside
  • Nylon jacket
  • PVC insulation
  • Copper conductor
Voltage
600 V; 2 kV
Insulation
PVC; XLPE; EPR
Sizes
14 AWG to 1000 kcmil
Conductor
Copper; aluminum

Applications

Type THHN/THWN-2 and Type XHHW-2 cover most commercial and industrial conduit work. Type USE-2 is used for direct burial, photovoltaic wire for solar arrays and Type SE cable for services.

  • Services, feeders and branch circuits
  • Conduit and raceway; cable tray, 1/0 AWG and larger
  • Photovoltaic source and output circuits
  • Fire pump and emergency feeders, 2-hour fire-rated cable

Copper building wire

TypeConstructionRatingStandard
Type THHN/THWN-2PVC insulation, nylon jacket600 V; 90 °CUL 83
Type XHHW-2XLPE insulation600 V; 90 °C wet or dryUL 44
Type RHH/RHW-2/USE-2XLPE insulation; direct burial600 V; 90 °C wet or dryUL 44, 854
Type RHH/RHW-2EPR insulation with thermoset jacket, or XLPE2 kVUL 44
Photovoltaic wire, Type PVXLPE insulation, sunlight resistant600 V; 1 kV; 2 kVUL 4703
Type TFFN, MTW and SISFixture, machine tool and switchboard wire600 VUL 66, 1063, 44

Aluminum building wire

TypeConstructionRatingStandard
Type XHHW-2, aluminumAA-8000 series compact conductor, XLPE insulation600 V; 90 °C wet or dryUL 44
Type RHH/RHW-2/USE-2, aluminumAA-8000 series compact conductor, XLPE insulation600 VUL 44, 854
Service entrance cable, Type SEStyle R and Style U (SER, SEU)600 VUL 854
Secondary UDDuplex, triplex and quadruplex, XLPE insulation600 VICEA S-105-692; UL 854

Fire-rated and low-smoke

TypeConstructionRatingStandard
2-hour fire-rated cableType RHH/RHW-2 circuit integrity cable for emergency feeders600 VUL 44, 2196
Low-smoke zero-halogenLSZH insulation and jackets on single conductors and cable600 V to 35 kVUL 1685; ICEA T-33-655

Options

StrandingSolid; Class B, compressed or compact; flexible strandings to order
ColorsBlack; phase colors; green; striped
MarkingsSunlight resistant; CT use, 1/0 AWG and larger
Put-upReels; paralleled reels; cut lengths
Data sheetsDimensions, weights and electrical data by size, issued with the quotation
Request a quotationAll products

Other product families

All products