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THHN wires
THHN (Thermoplastic High Heat-resistant Nylon-coated) building wire is the industry-standard conductor for commercial, industrial, and residential electrical installations. Designed for use in conduit or cable trays, THHN wire delivers reliable performance in high-temperature environments and is dual-rated THHN/THWN-2 for both dry and wet location applications.
Available in solid and stranded configurations, copper and aluminum conductors, and a full range of AWG sizes from 14 AWG through 1000 kcmil. Color-coded insulation simplifies phase identification and ensures code-compliant wiring installations.
Common Applications:
- Branch circuit and feeder wiring in conduit
- Commercial and industrial power distribution
- Control wiring and panel feeds
- Machine tool and appliance wiring
Specifications:
- Voltage Rating: 600V
- Temperature Rating: 90°C dry / 75°C wet (THWN-2)
- Insulation: PVC with nylon jacket
- Conductor: Copper (solid or stranded) or Aluminum
- Sizes Available: 14 AWG – 1000 kcmil
- Standards: UL 83 listed, NEC Article 310 compliant, RoHS compliant
Color Code Reference:
- Black, Red, Blue — ungrounded (hot) conductors
- White, Gray — neutral conductors
- Green, Bare — equipment grounding conductors
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Southwire 12AWG Black THHN Stranded Building Wire - 2500 Ft (Sold By The Foot)
Southwire 12AWG Black Thermoplastic High Heat Nylon Stranded Spooled Building Wire?? - 2500 Feet (Sold By The Foot) Model: 22964106 SKU: ACPI671240...
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$2.30
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$2.30
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$2.30
$2.30
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$2.30
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$2.30
Cerrowire THHN White 2 AWG Stranded - 500' (Sold By The Foot)
Cerrowire White Thermoplastic High Heat Nylon 2 AWG Stranded - 500 Ft Model: 112-4602J LID: J-Center
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$2.30
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$2.30
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$2.30
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$0.99
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CerroWire THHN Red 6 AWG Stranded - 500' (Sold By The Foot)
CerroWire Red Thermoplastic High Heat Nylon 6 AWG Stranded - 500 Ft (Sold By The Foot) Model: 112-4203J LID: J-Center
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$0.99
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$2.35
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$2.35
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$2.35
$2.35
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$2.35
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$2.35
CerroWire THHN Black 2 AWG Stranded - 500' (Sold By The Foot)
CerroWire Black Thermoplastic High Heat Nylon 2 AWG Stranded - 500 Ft (Sold By The Foot) Model: 112-4601J SKU: ACPI10200798 LID: J-Center
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$2.35
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$2.35
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$2.35
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$189.00
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$189.00
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$189.00
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$189.00
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$189.00
Southwire 10 Stranded THHN 500 Ft - Red
Southwire Red 10 Stranded THHN Copper (Cu) Wire 500 Feet Model: 22975757 LID: J3-1
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$189.00
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$189.00
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$189.00
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$189.00
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$189.00
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$162.00
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$162.00
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$162.00
$162.00
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$162.00
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$162.00
Cerrowire 10 AWG Blue Stranded THHN Wire - 500'
Cerrowire Blue 10 AWG Stranded Thermoplastic High Heat Nylon Copper Wire - 500 Ft Model: 112-3874J SKU: ACPI10201887 LID: J3-1
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$162.00
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$162.00
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$162.00
$162.00
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$162.00
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$162.00
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$162.00
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$162.00
$162.00
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$162.00
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$162.00
Cerrowire 10 AWG Green Solid THHN Wire - 500'
Cerrowire Green 10 AWG Solid Thermoplastic High Heat Nylon Copper Wire - 500 Ft Model: 112-1875J SKU: ACPI10201796 LID: J3-1
Original price
$162.00
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$162.00
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$162.00
$162.00
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$162.00
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$162.00
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$162.00
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$162.00
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$162.00
$162.00
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$162.00
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$162.00
Cerrowire 10 AWG White Solid THHN Wire - 500'
Cerrowire White 10 AWG Solid Thermoplastic High Heat Nylon Copper Wire - 500 Ft Model: 112-1872J LID: J3-1
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$162.00
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$162.00
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$162.00
$162.00
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$162.00
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$162.00
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$162.00
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$162.00
$162.00
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$162.00
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$162.00
Cerrowire 10 AWG Black Solid THHN Wire - 500'
Cerrowire Black 10 AWG Solid Thermoplastic High Heat Nylon Copper Wire - 500 Ft Model: 112-1871J SKU: ACPI10201770 LID: J3-1
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$162.00
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$162.00
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$162.00
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$162.00
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$162.00
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$119.99
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$119.99
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$119.99
$119.99
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$119.99
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$119.99
#12 AWG BLUE Stranded THHN (500ft)
??#12 AWG BLUE Stranded?? THHN (500ft) Model: THHN-12-STR-BLU-CU-500 LID:
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$119.99
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$119.99
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$119.99
$119.99
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$119.99
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$119.99
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$0.19
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Southwire 12/1 White THHN Stranded Building Wire - 2500 Ft Sold By Foot
Southwire 12/1 (12 AWG/1 Conductors) White Thermoplastic High Heat Nylon Stranded Spooled Building Wire?? - 2500 Feet Model: 22968206 SKU: ACPI4494...
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$189.00
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$189.00
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$189.00
$189.00
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$189.00
THHN #10 Black Stranded 500'
THHN #10 Black Stranded 500' Model: THHN-10-STR-BLK-CU-500 LID
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$189.00
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$189.00
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$189.00
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$189.00
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$189.00
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$189.00
THHN #10 Blue Stranded 500'
THHN #10 Blue Stranded 500' Model: THHN-10-STR-BLU-CU-500 LID
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$189.00
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$189.00
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$189.00
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$189.00
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$189.00
THHN #10 RED Stranded 500'
THHN #10 RED Stranded 500' Model: THHN-10-STR-RED-CU-500 LID
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$189.00
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$189.00
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Southwire 12/1 Red THHN Stranded Building Wire - 2500 Ft (Sold By The Foot)
Southwire 12/1 (12 AWG/1 Conductors) Red Thermoplastic High Heat Nylon Stranded Spooled Building Wire?? - 2500 Feet (Sold By The Foot) Model: 22966...
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Southwire 12/1 Blue THHN Stranded Building Wire - 2500 Ft (Sold By The Foot)
Southwire 12/1 (12 AWG/1 Conductors) Blue Thermoplastic High Heat Nylon Stranded Spooled Building Wire?? - 2500 Feet (Sold By The Foot) Model: 2296...
View full details
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$0.40
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$0.67
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$0.67
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$0.67
Cerrowire THHN White 8 AWG Stranded - 500' (Sold By The Foot)
Cerrowire White Thermoplastic High Heat Nylon 8 AWG Stranded - 500 Ft (Sold By The Foot) Model: 112-4002J LID: J-Center
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$0.67
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$0.67
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$0.67
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$189.00
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$189.00
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$189.00
$189.00
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$189.00
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$189.00
SouthWire 10 Solid THHN 500 Ft - Black
SouthWire Black 10 SOLID THHN Copper Wire 500 Feet Model: 11595657 SKU: ACPI10201770 LID: J3-1
Original price
$189.00
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$189.00
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$189.00
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$189.00
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$189.00
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$189.00
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$189.00
Southwire 10 Stranded THHN 500 Ft - Blue
Southwire Blue 10 Stranded THHN Copper (Cu) Wire 500 Feet Model: 22976557 LID: J3-1
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$189.00
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$189.00
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$86.59
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$86.59
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$86.59
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$86.59
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$86.59
Southwire 14 Solid THHN 500 Ft - Red
Southwire Red 14 Solid THHN Copper (Cu) Wire 500 Feet Model: 11581658 LID: J3-3
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$86.59
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$86.59
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$0.23
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$0.23
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Southwire 12/1 Green THHN Stranded Building Wire - 2500 Ft Sold By Foot
Southwire 12/1 (12 AWG/1 Conductors) Green Thermoplastic High Heat Nylon Stranded Spooled Building Wire?? - 2500 Feet Model: 22968206 SKU: ACPI2246...
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$446.79
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$446.79
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$446.79
$446.79
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$446.79
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$446.79
Southwire 12/1 White THHN Stranded Building Wire - 2500 Ft
Southwire 12/1 (12 AWG/1 Conductors) White Thermoplastic High Heat Nylon Stranded Spooled Building Wire?? - 2500 Feet Model: 22968206 SKU: ACPI4494...
View full details
Original price
$446.79
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Original price
$446.79
Original price
$446.79
$446.79
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$446.79
Current price
$446.79
Original price
$446.79
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Original price
$446.79
Original price
$446.79
$446.79
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$446.79
Current price
$446.79
Southwire 12/1 Green THHN Stranded Building Wire - 2500 Ft
Southwire 12/1 (12 AWG/1 Conductors) Green Thermoplastic High Heat Nylon Stranded Spooled Building Wire?? - 2500 Feet Model: 22968206 SKU: ACPI2246...
View full details
Original price
$446.79
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Original price
$446.79
Original price
$446.79
$446.79
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$446.79
Current price
$446.79
Original price
$86.59
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Original price
$86.59
Original price
$86.59
$86.59
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$86.59
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$86.59
Cerrowire 14 AWG White Stranded THHN Wire - 500'
Cerrowire White 14 AWG Stranded Thermoplastic High Heat Nylon Copper Wire - 500 Ft Model: 112-3452J LID: J3-3
Original price
$86.59
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Original price
$86.59
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$86.59
$86.59
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$86.59
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$86.59