1 AWG THHN THWN-2 Stranded Copper Building Wire | Nassau Cable
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1 AWG THHN THWN-2 Stranded Copper Building Wire

1 AWG THHN THWN-2 Stranded Copper Building Wire
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1 AWG THHN THWN-2 Stranded Copper Building Wire
Roll over image to Zoom
1 AWG THHN THWN-2 Stranded Copper Building Wire
Roll over image to Zoom
1 AWG THHN THWN-2 Stranded Copper Building Wire
Roll over image to Zoom
1 AWG THHN THWN-2 Stranded Copper Building Wire
Roll over image to Zoom
1 AWG THHN THWN-2 Stranded Copper Building Wire
Roll over image to Zoom
1 AWG THHN THWN-2 Stranded Copper Building Wire
Roll over image to Zoom
1 AWG THHN THWN-2 Stranded Copper Building Wire
Roll over image to Zoom
1 AWG THHN THWN-2 Stranded Copper Building Wire
Roll over image to Zoom
1 AWG THHN THWN-2 Stranded Copper Building Wire
SKU: NNC2249X1
thhn-thwn-2-copper-building-wire

Availability: In stock

Min Length: 10 FT
Max Length: 10000 FT
Price:
Regular price
$3.56 /FT
Sale price
$3.56 /FT
Shipping Cost Calculated at Checkout. Standard Lead Time is 1 to 6 Business Days.
Free Shipping: On orders above $1000
Quantity must be 1 or more

Enter the required footage in the quantity box - Cut to one length

Customer Reviews

Based on 22 reviews
91%
(20)
0%
(0)
5%
(1)
0%
(0)
5%
(1)
M
Mark Johnson
Broken Spool

Both times that I have ordered a large entrance cable from your firm some of the wooden spools arrived broken making it difficult to unroll without someone constantly assisting at that end of the pull. This most recent order arrived with the red cable being rolled up on a broken spool. Regarding my earlier shipment, I believe that large spool was damaged in shipping, but this time it appears the red cable was placed on a damaged spool before shipping. I wish I had taken photos to clearly show why I feel the spool was inferior prior to shipment, but I didn't. Please review with your employees the importance of spooling heavy cable on a sound spool so that DIY customers like myself who work alone can efficiently complete cable pulls single handedly. Thank you!

R
RH
Good product, fast shipping

I received exactly what I ordered and the shipment went out immediately. I will definitely use Nassau National Cable again.

J
Jiri Jurczyga

1 AWG THHN THWN-2 Stranded Copper Building Wire

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Product Information
Specification

1 AWG THHN THWN-2 Stranded Copper Building Wire

Allowable Ampacity:

  • 110 Amps for General Applications (60°C)

  • 130 Amps in Wet Locations (75°C)

  • 150 Amps in Dry Locations (90°C)

Description

1 AWG THHN/THWN-2 stranded copper wire is designed for durability and versatility in various applications. With a dual rating for THHN (thermoplastic high heat-resistant nylon, dry) and THWN-2 (wet) conditions, it supports up to 600 volts and operates at temperatures up to 90°C. The flame-retardant PVC jacket resists sunlight, moisture, and chemicals, ensuring reliable performance in demanding environments.

Applications for 1 AWG THHN Wire

1 AWG THHN wire, with a capacity of up to 150 amps, is commonly used for:

  • Large Residential Feeders: Supplying power to upscale homes with high electrical demand.

  • Commercial Building Feeders: Distributing power in medium to large commercial buildings.

  • Industrial Equipment: Powering large machinery that requires substantial current.

  • Motor Connections: Providing connections for motors in industrial and commercial setups.

  • Service Entrance: Used for service entrance wiring when properly configured and protected.

  • Conduit Systems: Easily pulled through conduits for structured wiring.

  • Branch Circuits and Feeders: Distributing power from service panels to appliances, subpanels, and fixtures.

Also Known As

1 AWG THHN wire, 1 stranded THHN wire, 1 gauge stranded wire, 1 copper wire, 1 AWG stranded copper wire, 1 AWG conduit wire, 1 AWG nylon wire, 1 AWG thermoplastic-insulated copper wire, 1 AWG THHN/THWN-2 wire, 1 stranded copper building wire, 1 THHN wire.

Construction of 1 AWG THHN Stranded Wire

  • Conductor:
    Flexible annealed soft copper per ASTM B3 and ASTM B8.

  • Insulation:
    Durable, flame-retardant PVC jacket that resists sunlight and is lead-free.

  • Outer Jacket:
    Abrasion-resistant nylon coating for smooth conduit installations.

Standards for THHN/THWN-2 1 AWG Wire

  • ICEA S-73-532

  • UL 1277 (Resistant to flame, moisture, and sunlight)

  • UL 1581, UL 83, UL 163, UL 758

  • ASTM B3 and B8 conductor standards

  • ANSI/NFPA 70 for Safe Electrical Design and Installation

  • RoHS compliant

  • Approved for NEC Class I and II systems and Division 2 hazardous locations

  • Allowed for Exposed Run (ER) and complies with NEC regulations

  • Complies with A-A59544 specifications for durability and safety

Specifications of 1 AWG THHN Wire

  • Size (AWG): 1

  • Weight per 1,000 ft: 300 lbs

  • Outside Diameter: 0.450 inches

  • Conductors: Annealed Soft Copper per ASTM B3 and ASTM B8

  • Number of Strands: 19

  • Insulation: PVC

  • Insulation Thickness (mils): 50

  • Nylon Thickness (mils): 7

  • Jacket: PVC

Compatible with Manufacturer

AWC : 

Black: THHN 1 19 0
White: THHN 1 19 9
Red: THHN 1 19 2
Blue: THHN 1 19 6
Green: THHN 1 19 5
Yellow: THHN 1 19 4
Brown : THHN 1 19 1
Orange: THHN 1 19 3
Violet: THHN 1 19 7
Gray: THHN 1 19 8

Omni Cable :

Black: M501ST-01
White: M501ST-02
Red: M501ST-03
Green: M501ST-04
Blue: M501ST-05
Gray: M501ST-06
Orange : M501ST-07
Yellow: M501ST-08
Purple : M501ST-09
Brown: M501ST-10
Pink: M501ST-11
Tan: M501ST-12

Southwire :

White: 34458001
Green: 40019201
Black: 20504701
Red: 34459801
Blue: 48194505
Gray: 55089101
Orange: 55088805
Yellow: 55088701
Purple: 55248899
Brown: 55089001
Pink: 57828499
Tan: 57828599

Houston Wire:

HW00100101


     


    *Data provided on this page is subject to change based on different manufacturers' variances
    ** Images are for display purposes only refer to Product Technical Details for accurate information on the product.
    In the case the material only comes in a predetermined color or doesn’t come with any color
    Download PDF Spec Sheet

    FAQ's

    What does THHN stand for?

    THHN stands for "Thermoplastic High Heat-resistant Nylon-coated."

    What is THHN Wire suitable for?

    THHN wire is suitable for electrical conduits, indoor and outdoor use (as long as ranked THWN), building wire across industries, and control circuits.

    Can THHN Be Direct Buried?

    THHN does not have an appropriate rating for direct burial because of its construction, but THHN/THWN-2 with a double rating can.

    Does THHN Have to Be in Conduit?

    Yes, THHN has to be installed in conduit at all times as per NEC. The only exception to this rule is when THHN is installed in control panels.

    Is THHN Rated for Wet Locations?

    THHN is rated for dry locations, while THWN is rated for wet locations.

    Can THHN Be Used in Underground Conduit?

    The wire used for the underground conduit should have a THWN-2 rating for wet locations.

    Can You Run THHN in Walls?

    You can run THHN wire in walls within conduit or raceway, but NM-B wire is generally a more popular option for indoor wiring.

    Can you use THHN wire for automotive?

    Using THHN wire for automotive applications is not recommended.

    Is THHN wire waterproof?

    THHN/THWN is not waterproof. While it is suited for wet or damp environments, it cannot be directly submerged into water.

    Reviews

    Customer Reviews

    Based on 22 reviews
    91%
    (20)
    0%
    (0)
    5%
    (1)
    0%
    (0)
    5%
    (1)
    M
    Mark Johnson
    Broken Spool

    Both times that I have ordered a large entrance cable from your firm some of the wooden spools arrived broken making it difficult to unroll without someone constantly assisting at that end of the pull. This most recent order arrived with the red cable being rolled up on a broken spool. Regarding my earlier shipment, I believe that large spool was damaged in shipping, but this time it appears the red cable was placed on a damaged spool before shipping. I wish I had taken photos to clearly show why I feel the spool was inferior prior to shipment, but I didn't. Please review with your employees the importance of spooling heavy cable on a sound spool so that DIY customers like myself who work alone can efficiently complete cable pulls single handedly. Thank you!

    R
    RH
    Good product, fast shipping

    I received exactly what I ordered and the shipment went out immediately. I will definitely use Nassau National Cable again.

    J
    Jiri Jurczyga

    1 AWG THHN THWN-2 Stranded Copper Building Wire

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    Call Us: 1-516-482-6313    Text Us: 1-516-703-3460