THHN and THWN Wire

Conductor

Soft drawn annealed copper conductors as per UL 83.

Available in solid or stranded type for sizes 14, 12 and 10 AWG.

Sizes 8 AWG and larger available in stranded only.

Insulation

Extruded Polyvinyl Chloride (PVC) compound rated 75 and 90 deg. C.

Jacket

Tough, smooth, heat and light stablized, low moisture absorption nylon conforming to UL requirements for type THHN or THWN.

This jacket offers a great degree of protection to the PVC insulation from abrasion and cut-through which may be encountered in pulling wire through conduits. Nylon has long been recognized as one of the toughest jacketing material used in wire and cable manufacturing.

1.Meets UL ‘VW – 1’ Flame Test requirements.
2.Wet or dry locations – Rated 90⁰C dry, 75⁰C  wet.
3.Resistant to gas and oil exposure – Rated gasoline and oil resistant II per UL.
4.Versatile – Can be used as follows:
a) THHN – 90⁰C dry building wire
b) THWN – 75⁰C wet and dry building wire
c) MTW – 90⁰C machine tool wire
5.Pulls easier – tough, smooth nylon jacket over PVC insulation.
6.Small diameter – more conductors per conduit.
7. Operating Voltage: 600V

Type THHN – THWN building wires are intended for general purpose applications and may be installed in conduit, duct or other recognized raceways in wet or dry locations. Type THHN – THWN wires are designed to operate at conductor temperatures of 75 deg. C for 600 volts service in wet and dry locations. Applicable for both new work and rewiring installations where the smaller wire diameter permits additional circuits or larger conductors to be installed in the conduit without exceeding maximum fill limitations.

Type THHN – THWN wires are also recommended for industrial installation where exceptional resistance to heat and corrosive atmospheres are needed, such as chemical paints, oil refineries, paper mills, etc.

UL 83-Underwriters Laboratories, Thermoplastic Insulated wires and Cables.

UL 1063-Underwriters Laboratories, Machine Tool Wires and Cables.

UL 1581-Underwriters Laboratories, Reference standard for Electrical wires, Cables and Flexible Cords.

600 Volts Copper Conductor PVC Insulated NYLON Jacketed THHN/THWN Wires UL 83, 1581

18 AWG (TFFN)

16 AWG (TFFN)

14 AWG

12 AWG

10 AWG

8 AWG

6 AWG

4 AWG

2 AWG

1/0 AWG

2/0 AWG

Red, Yellow Blue, Black, White, Brown, Green, Orange etc.

152 m (500 FT) in Coils

1000 m (3280 FT) in Drums