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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
Original price
$162.00
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Original price
$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 Stranded THHN Wire - 500'
Cerrowire Black 10 AWG Stranded Thermoplastic High Heat Nylon Copper Wire - 500 Ft Model: 112-3871J SKU: ACPI10200665 LID: J3-1
Original price
$162.00
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Original price
$162.00
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$162.00
$162.00
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$162.00
Current price
$162.00
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Original price
$119.99
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$119.99
Original price
$119.99
$119.99
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$119.99
Current price
$119.99
12 Stranded THHN Copper (Cu) Wire 500 Feet
12 Stranded THHN Copper (Cu) Wire 500 Feet Model: THHN-12-STR-WHT-CU-500 LID: J3-2
Original price
$119.99
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Original price
$119.99
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$119.99
$119.99
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$119.99
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$119.99
Original price
$169.00
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Original price
$169.00
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$169.00
$169.00
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$169.00
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$169.00
10 AWG White Stranded THHN Wire - 500'
White 10 AWG Stranded Thermoplastic High Heat Nylon Copper Wire - 500 Ft Model: THHN-10-STR-WHT-CU-500 SKU:?? LID: J3-1
Original price
$169.00
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Original price
$169.00
Original price
$169.00
$169.00
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$169.00
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$169.00
Original price
$119.99
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Original price
$119.99
Original price
$119.99
$119.99
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$119.99
Current price
$119.99
12 AWG Green Stranded THHN Wire - 500'
Green 12 AWG Stranded Thermoplastic High Heat Nylon Copper Wire - 500 Ft Model: THHN-12-STR-GRN-CU-500 LID: J3-2
Original price
$119.99
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Original price
$119.99
Original price
$119.99
$119.99
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$119.99
Current price
$119.99
Original price
$119.99
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Original price
$119.99
Original price
$119.99
$119.99
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$119.99
Current price
$119.99
AMMO 12 Stranded THHN 500 Ft - Blue
AMMO Blue 12 Stranded THHN Copper (Cu) Wire 500 Feet Model: 528886 SKU:?? LID: J3-2
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$119.99
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Original price
$119.99
Original price
$119.99
$119.99
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$119.99
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$119.99
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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
Current price
$189.00
Southwire 10 Stranded THHN 500 Ft - Green
Southwire Green 10 Stranded THHN Copper (Cu) Wire 500 Feet Model: 22977357 SKU: ACPI10200129 LID: J3-1
Original price
$189.00
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Original price
$189.00
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$189.00
$189.00
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$189.00
Current price
$189.00
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Original price
$168.00
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Original price
$168.00
Original price
$168.00
$168.00
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$168.00
Current price
$168.00
10 AWG Green Stranded THHN Wire - 500'
Green 10 AWG Stranded Thermoplastic High Heat Nylon Copper Wire - 500 Ft Model: THHN-10-STR-GRN-CU-500 LID: J3-1
Original price
$168.00
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Original price
$168.00
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$168.00
$168.00
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$168.00
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$168.00
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$1.49
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Original price
$1.49
Original price
$1.49
$1.49
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$1.49
Current price
$1.49
CerroWire THHN Black 4 AWG Stranded - 500'(Sold By The Foot)
CerroWire Black Thermoplastic High Heat Nylon 4 AWG Stranded - 500 Ft (Sold By The Foot) Model: 112-4401J SKU: ACPI10200756 LID: J-Center
Original price
$1.49
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Original price
$1.49
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$1.49
$1.49
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$1.49
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$1.49
Original price
$189.00
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Original price
$189.00
Original price
$189.00
$189.00
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$189.00
Current price
$189.00
Southwire 10 Stranded THHN 500 Ft - White
Southwire White 10 Stranded THHN Copper (Cu) Wire 500 Feet Model: 229704057 SKU: ACPI10201630 LID: J3-1
Original price
$189.00
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Original price
$189.00
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$189.00
$189.00
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$189.00
Current price
$189.00
Original price
$119.99
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Original price
$119.99
Original price
$119.99
$119.99
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$119.99
Current price
$119.99
12 AWG Red Stranded THHN Wire - 500'
??Red 12 AWG Stranded Thermoplastic High Heat Nylon Copper Wire - 500 Ft Model: THHN-12-STR-RED-CU-500 LID: J3-2
Original price
$119.99
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Original price
$119.99
Original price
$119.99
$119.99
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$119.99
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$119.99
Original price
$1.39
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Original price
$1.39
Original price
$1.39
$1.39
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$1.39
Current price
$1.39
CerroWire THHN Green 6 AWG Stranded - 500' (Sold By The Foot)
CerroWire Green Thermoplastic High Heat Nylon 6 AWG Stranded - 500 Ft (Sold By The Foot) Model: 112-4205J SKU: ACPI10200749 LID: J-Center
Original price
$1.39
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Original price
$1.39
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$1.39
$1.39
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$1.39
Current price
$1.39
Original price
$119.99
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Original price
$119.99
Original price
$119.99
$119.99
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$119.99
Current price
$119.99
12 AWG Black THHN Wire - 500'
Black 12 AWG Stranded Thermoplastic High Heat Nylon Copper Wire - 500 Ft Model: THHN-12-STR-BLK-CU-500 LID: J3-2
Original price
$119.99
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Original price
$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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$3.85
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Original price
$3.85
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$3.85
$3.85
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$3.85
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$3.85
Cerrowire 1/0 Black THHN - by-the-foot
Cerrowire 1/0 Black THHN - by-the-foot Model: 112-5001j LID: A-EC1
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$3.85
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$3.85
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$3.85
$3.85
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$3.85
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$3.85
Original price
$86.59
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Original price
$86.59
Original price
$86.59
$86.59
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$86.59
Current price
$86.59
Cerrowire 14 AWG Green Stranded THHN Wire - 500'
Cerrowire Green 14 AWG Stranded Thermoplastic High Heat Nylon Copper Wire - 500 Ft Model: 112-3455J 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
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$5.55
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Original price
$5.55
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$5.55
$5.55
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$5.55
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$5.55
Building wire 4/0-19 CU Black THHN Copper Wire
Building wire 4/0-19 CU Black THHN Copper Wire,?? 20508802,??4/0-19 CU SIMpull(TM) THHN-THWN-2 MTW BLACK
Original price
$5.55
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$5.55
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$5.55
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$5.55
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$5.55
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$1.49
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Original price
$1.49
Original price
$1.49
$1.49
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$1.49
Current price
$1.49
CerroWire THHN Green 4 AWG Stranded - 500' (Sold By The Foot)
CerroWire Green Thermoplastic High Heat Nylon 4 AWG Stranded - 500 Ft (Sold By The Foot) Model: 112-4405J SKU: ACPI10200756 LID: J-Center
Original price
$1.49
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Original price
$1.49
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$1.49
$1.49
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$1.49
Current price
$1.49
Original price
$189.00
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Original price
$189.00
Original price
$189.00
$189.00
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$189.00
Current price
$189.00
#10 Stranded THHN 500 Ft - Black
Black #10 Stranded THHN Copper (Cu) Wire 500 Feet Model: THHN-10-STR-BLK-CU-500
Original price
$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
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$4.79
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Original price
$4.79
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$4.79
$4.79
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$4.79
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$4.79
Southwire Building wire 3/0-19 CU Black THHN Copper Wire
Southwire?? SIMpull THHN?? copper conductors are primarily used in conduit and cable trays for services, feeders and branch circuits in commercial ...
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Original price
$4.79
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$4.79
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$4.79
$4.79
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$4.79
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$4.79
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$0.67
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Original price
$0.67
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$0.67
$0.67
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$0.67
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$0.67
Cerrowire THHN Green 8 AWG Stranded - 500' (Sold By The Foot)
Cerrowire Green Thermoplastic High Heat Nylon 8 AWG Stranded - 500 Ft (Sold By The Foot) Model: 112-4005J SKU: ACPI10200707 LID: J-Center
Original price
$0.67
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$0.67
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$0.67
$0.67
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$0.67
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$0.67
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$0.99
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$0.99
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$0.99
$0.99
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$0.99
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$0.99
CerroWire THHN White 6 AWG Stranded - 500' (Sold By The Foot)
CerroWire White Thermoplastic High Heat Nylon 6 AWG Stranded - 500 Ft (Sold By The Foot) Model: 112-4202J LID: J-Center
Original price
$0.99
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$0.99
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$0.99
$0.99
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$0.99
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$0.99
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$0.67
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$0.67
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$0.67
$0.67
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$0.67
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$0.67
Cerrowire THHN Black 8 AWG Stranded - 500' (Sold By The Foot)
Cerrowire Black Thermoplastic High Heat Nylon 8 AWG Stranded - 500 Ft (Sold By The Foot) Model: 112-4001J SKU: ACPI10200707 LID: J-Center
Original price
$0.67
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Original price
$0.67
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$0.67
$0.67
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$0.67
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$0.67
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$5.89
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Original price
$5.89
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$5.89
$5.89
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$5.89
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$5.89
112-5401J 500' 3/0 BLK THHN by feet
112-5401J 500' 3/0 BLK THHN by feet, SKU: ACPI10200780 LID;BEC-1
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$5.89
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Original price
$5.89
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$5.89
$5.89
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$5.89
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$5.89
Original price
$86.59
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Original price
$86.59
Original price
$86.59
$86.59
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$86.59
Current price
$86.59
Cerrowire 14 AWG Red Stranded THHN Wire - 500'
Cerrowire Red 14 AWG Stranded Thermoplastic High Heat Nylon Copper Wire - 500 Ft Model: 112-3453J LID: J3-3
Original price
$86.59
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Original price
$86.59
Original price
$86.59
$86.59
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$86.59
Current price
$86.59
Original price
$162.00
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Original price
$162.00
Original price
$162.00
$162.00
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$162.00
Current price
$162.00
Cerrowire 10 AWG Red Stranded THHN Wire - 500'
Cerrowire Red 10 AWG Stranded Thermoplastic High Heat Nylon Copper Wire - 500 Ft Model: 112-3873J SKU: ACPI10201879 LID: J3-1/J3-4
Original price
$162.00
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Original price
$162.00
Original price
$162.00
$162.00
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$162.00
Current price
$162.00
Sold out