Items in Cart ()

View cart

12 AWG THHN THWN-2 Solid Copper Building Wire

12 AWG THHN THWN-2 Solid Copper Building Wire
Roll over image to Zoom
12 AWG THHN THWN-2 Solid Copper Building Wire
Roll over image to Zoom
12 AWG THHN THWN-2 Solid Copper Building Wire
Roll over image to Zoom
12 AWG THHN THWN-2 Solid Copper Building Wire
Roll over image to Zoom
12 AWG THHN THWN-2 Solid Copper Building Wire
Roll over image to Zoom
12 AWG THHN THWN-2 Solid Copper Building Wire
Roll over image to Zoom
12 AWG THHN THWN-2 Solid Copper Building Wire
Roll over image to Zoom
12 AWG THHN THWN-2 Solid Copper Building Wire
Roll over image to Zoom
12 AWG THHN THWN-2 Solid Copper Building Wire
Roll over image to Zoom
12 AWG THHN THWN-2 Solid Copper Building Wire
Roll over image to Zoom

12 AWG THHN THWN-2 Solid Copper Building Wire

SKU: NNC21513X-110

Availability: IN STOCK, MINIMUM ORDER QUANTITY 170FT

Price:
Regular price
$0.40
Sale price
$0.21 /FT 47% off
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 11 reviews
91%
(10)
9%
(1)
0%
(0)
0%
(0)
0%
(0)
J
Joseph Simon

12 AWG THHN THWN-2 Solid Copper Building Wire

R
Robert Nedom

12 AWG THHN THWN-2 Solid Copper Building Wire

J
Jim Kelley
12 AWG THHN THWN-2 Solid Copper Building Wire

Excellent product! I would definite buy again and recommend to all my friends.

J
Jeroen Van Donselaar
THHN-THWN2

Great price, great quality, as advertised and fast shipping! Installed in conduit and functions as expected.

J
Jonathan

Great prices and fast shipping

Where are we? 4 Continents 8 Countries

map
garrie

Got any Questions?

Speak with a real person who will go out of their way to help you!

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

Chat

Live Chat: Bottom Right Corner!

Email Us

info@nassaunationalcable.com

Product Information

Specification

12 AWG THHN THWN-2 Solid Copper Building Wire

THHN THWN-2 Copper Building Wire Allowable Ampacity in Duct: 20 Amps at 60ºC / 20 Amps at 75ºC / 20 Amps at 90ºC

Also Known As:

12 thhn, 12 awg thhn 2, 12 awg thhn, 12 solid thhn, 12 gauge solid wire, 12 copper wire, 12 awg solid copper wire, 12 awg Copper wire, 12 awg building cable, 12 awg conduit wire, 12 awg nylon wire, 12 awg construction cable, 12 awg thermoplastic-insulated copper wire, 12 awg THHN-PVC tray cable.

About 12 AWG THHN THWN-2 Applications:

THHN stands for thermoplastic high heat-resistant nylon. Known for versatility and durability, it is the most common type of building cable. The double marking THHN /THWN-2 indicates that the electrical wire is suitable for wet and dry conditions equally (The letter "W" means that it is water-safe). Additionally, the cable is resistant to corrosion, excessive dryness, and the impact of chemicals. The building wire is rated 90 degrees Celsius in both wet and dry locations. The electrical wire  is rated at 600 V.

THHN Applications include:

  • Building Wiring: This encompasses everything from lighting circuits to outlets in homes, commercial buildings, and industrial facilities.
  • Conduit and Cable Trays: THHN is designed to be pulled through conduit, making it ideal for structured wiring systems in commercial and industrial settings. It's also commonly used in cable trays in industrial facilities.
  • Control Systems: THHN can be used for wiring control circuits, including those for machinery, HVAC systems, and other building automation components.
  • Machine Tool Wire: In manufacturing and industrial environments, THHN is commonly used to wire machine tools and equipment.
  • Large Appliances: THHN wires can be used for connections inside large appliances like ovens, ranges, and HVAC units.
  • Motor Connections: For connecting motors in both residential and commercial settings
  • Feeders and Branch Circuits: In electrical distribution systems, THHN wires can serve as both feeders (which extend from service panels to subpanels or major appliances) and branch circuits (which extend from panels to outlets, lights, or individual appliances).
  • Service Entrance: While specific SE cables exist for this purpose, THHN wires can also be used for service entrances when appropriately configured and protected.

Particular 12 AWG THHN Application Are:

  • Standard Outlets: Most commonly used in residential settings for standard wall outlets.
  • Lighting Circuits: Residential and commercial lighting circuits, both for ceiling lights and wall-mounted lights.
  • Small Appliances: Think of household items like blenders, chargers, or desktop computers.


12 AWG THHN THWN-2 Construction:

Conductor:

THHN THWN-2 conductors are constructed of annealed soft copper that follows ASTM B3 and ASTM B8 standards. 

Insulation:

The cable is insulated with a thermoset plastic jacket (PVC) that is flame-retardant, sunlight-resistant, lead-free, strong, and stable. Without being too bulky, it ensures that the cable can be used in harsh conditions. The jacket is color-coded in accordance with ICEA Method 4.

12 AWG THHN THWN-2 Standards:

  • ICEA S-73-532
  • UL 1277 (Resistant to flame, moisture, and sunlight)
  • UL 1581, UL 83, UL 1063 , UL 758
  • A-A59544
  • ASTM B3 and B8 conductor
  • ANSI/NFPA 70 for Safe Electrical Design and Installation
  • RoHS compliant
  • Safe For Commercial and Industrial Use
  • Color-coded #1-E2 per ICEA S-73-532
  • May be used in NEC Class I and II systems
  • May be used in Division 2 hazardous locations
  • Allowed for Exposed Run (ER) and be used in accordance with NEC

12 AWG THHN THWN-2 Specifications:

  • Size AWG: 12
  • Outside Diameter: 3.05 mm / 0.120 inches
  • Cross Section Area:  3.31 mm2
  • Conductors: Annealed Soft Copper per ASTM B3 and ASTM B8
  • Stranding: Solid
  • Insulation: PVC
  • PVC Insulation Thickness: 0.380 mm / 0.015 inches
  • Nylon Thickness: 0.100 mm / 0.004 inches
  • Jacket: PVC
  • Weight (lbs/1000ft): 25

Manufacturer Equivalents

Alan : 

Black : 12NS15
White : 12NS25
Red : 12NS35

Blue : 12NS45
Green : 12NS55
Yellow : 12NS65

Brown : 12NS75
Orange : 12NS85
Gray : 12NS95
Pink : 12NSA5
Purple : 12NSB5

Nexans : Black : 616318
White : 616326
Red : 616334

Blue : 616342
Green : 616359
Yellow : 616367

Brown : 616383
Orange : 616375

Gray : 618934
Pink : 664482
Purple : 664458

Omni Cable :

Black : M512SO-01
White : M512SO-02
Red : M512SO-03
Green : M512SO-04
Blue : M512SO-05
Gray : M512SO-06
Orange : M512SO-07
Yellow : M512SO-08
Purple : M512SO-09
Brown : M512SO-10
Pink : M512SO-11

Southwire :

Black : 11587301
White : 11588101
Red : 11589901
Blue : 11590701
Green : 11591505

Yellow : 11592301
Orange : 11593101
Brown : 11594901
Gray : 22870001
Purple : 21204301
Pink : 25647901


*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 is the maximum ampacity of #12 THHN wire?

The maximum ampacity of #12 THHN wire is 20 amps.

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.

Does THHN Have to Be in Conduit?

Yes, THHN must always be installed in conduit as per NEC. The only exception to this rule is when THHN is installed in control panels. 

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.

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 environments, it cannot be directly submerged in water.

How many #12 THHN are in 3/4 EMT?

For #12 THHN wires in 3/4 EMT, you can fit up to 16 wires.

How many #12 THHN in 1/2 EMT?

For #12 THHN wires in 1/2" EMT, you can fit up to 9 wires.

How many #12 THHN in 1 EMT?

For #12 THHN wires in 1" EMT, you can fit up to 26 wires.

Reviews

Customer Reviews

Based on 11 reviews
91%
(10)
9%
(1)
0%
(0)
0%
(0)
0%
(0)
J
Joseph Simon

12 AWG THHN THWN-2 Solid Copper Building Wire

R
Robert Nedom

12 AWG THHN THWN-2 Solid Copper Building Wire

J
Jim Kelley
12 AWG THHN THWN-2 Solid Copper Building Wire

Excellent product! I would definite buy again and recommend to all my friends.

J
Jeroen Van Donselaar
THHN-THWN2

Great price, great quality, as advertised and fast shipping! Installed in conduit and functions as expected.

J
Jonathan

Great prices and fast shipping

Get in Touch
Live Chat Get replies right away!
Email info@nassaunationalcable.com

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