$0.00

Checkout ►

Direct Sales in US and Canada | 1-800-633-0405

MY ORDERS |

PRODUCT RETURNS |

INVOICES |

QUOTES |

ABOUT US

FREE 2-Day Shipping $49 and over

Home |

Products |

Support

Account |

Chat

Javascript is not enabled on your browser. Javascript is required for many of our site's features to work properly.
Please enable javascript in your browser preferences to continue.

Attention Hubbell-Wiegmann Enclosure Customers: The order deadline for same-day shipment of LTL (freight) orders direct-shipped from Hubbell-Wiegmann in Freeburg, IL has temporarily changed to 3:00 pm ET.
The order deadline for same-day shipment of all other direct-shipped products, including small parcel orders from Hubbell-Wiegmann, will remain at 4:00 pm ET. We appreciate your patience as we work with our vendors to get this freight shipped order deadline restored to its original time.

Shopping Categories

Learn More

In Depth Product Sites

Product Selectors &
Configuration Utilities

Wiring Solutions > Electrical Hook-Up / Building Wire > Insulation Type - THHN

Insulation Type - THHN

Type THHN wire is intended for general purpose applications such as conduit or cable tray, services, feeders, and branch circuits. It is appropriate for new construction or rewiring for 600V applications. These conductors are suitable for wet or dry locations at temperatures not to exceed 90 degrees Celsius (or 75 degrees C in oil or coolants).

Insulation Type - MTW

Insulation Type - TFFN

Insulation Type - THHN

Wire Marking Tags

Wire - Insulation Type THHN

General Purpose Applications

Type THHN building wire is intended for general purpose applications as defined by the National Electrical Code (NEC). It is appropriate for new construction or rewiring for 600 volt applications. When used as type THHN, the conductor is suitable for use in wet or dry locations at temperatures not to exceed 90�C or not to exceed 75�C in oil or coolants. When used as type MTW, the conductor is suitable for use in dry locations at 90�C, or not to exceed 60�C in wet locations or where exposed to oils or coolants.

Sizes - 4, 6, 8, 10, 12, 14 AWG
Spool / Reel Length - 500 ft. & 2,500 ft.
Conductors - stranded, uncoated copper conductors per ASTM-B3, ASTM-B787 and ASTM-B8
Insulation - Color-coded, Polyvinyl Chloride (PVC) heatand moisture-resistant, flame-retardant compound per UL 1063 and UL 83
Jacket -
- THHN: tough, polyamide, Nylon outer covering per UL 1063 and UL 83
- Slick Nylon outer jacket for easy pulling
THHN Colors - 500 ft.:

14 AWG - Black, White, Red, Blue, Green, Yellow, Orange, Brown, Purple, Gray, Blue/White, Green/Yellow
12 AWG - Black, White, Red, Blue, Green, Yellow, Orange, Brown, Gray, Green/Yellow
10 AWG - Black, White, Green, Yellow, Orange, Brown, Green/Yellow
8 AWG - Black, Green, Green/Yellow
6 AWG - Black
4 AWG - Black