Product Brochure
600 Volts. Copper Conductor. Thermoplastic Insulation/Nylon Sheath, Heat, Moisture, Gasoline and Oil
Resistant II. All Sizes Rated Both THHN and either THWN (sizes 14, 12, and 10 AWG) or THWN-2 (sizes 8
AWG and larger). Also Rated MTW and AWM (See Below). SIMpull
®
Technology for Easier Pulling.
Southwire® SIMpull THHN® copper conductors are primarily used in conduit and cable trays for services,
feeders and branch circuits in commercial or industrial applications as specified in the National Electrical
Code. Voltage for all applications is 600 volts. SIMpull THHN® copper conductors are designed to be
installed without application of a pulling lubricant.
These conductors have multiple ratings. Depending upon the product application, allowable temperatures
are as follows:
• THHN or T90 Nylon- Dry locations not to exceed 90° C
• THWN-2- Wet or dry locations not to exceed 90
° C
or locations not to exceed 75° C
when exposed
to oil
•
THWN- Wet locations not to exceed 75° C or dry locations not to exceed 90° C or locations not
to exceed 75° C when exposed to oil
•
TWN75- Wet locations not to exceed 75° C
•
MTW- Wet locations or when exposed to oil at temperatures not to exceed 60° C or dry locations
not to exceed 90° C (with ampacity limited to that for 75° C conductor temperature per NFPA 79)
•
AWM- Dry locations not to exceed 105° C only when rated and used as appliance wiring material
Southwire® SIMpull THHN® copper conductors comply with the following:
• ASTM - B3, B8, and B787 (19 Wire Combination Unilay-Stranded)
• UL Standards 83, 758, 1063, and 1581
• CSA C22.2 No. 75, T90 Nylon/TWN75 Sizes through 1000 kcmil
• NOM-ANCE 90° C
• Federal Specification A-A-59544
• NEMA WC-70 (ICEA S-95-658) Construction Requirements
• National Electrical Code, NFPA 70
• CT Rated in Sizes 1/0 AWG and larger
• VW-1 - Sizes 14 through 1 AWG
• FT1 - All Sizes
• Sunlight Resistant – Sizes 2 AWG and larger
• AWM - Sizes 14 through 6 AWG
• MTW - Stranded Constructions Only
• RoHS/REACH Compliant
Southwire® SIMpull THHN® copper conductors are made with soft drawn copper. Sizes 14 through 4/0 AWG use a
combination-unilay stranding while 250 kcmil and larger sizes use a compressed copper stranding. The wire is
covered with a tough heat and moisture resistant PVC insulation with an overall nylon jacket utilizing SIMpull®
Technology. Available in black, white, red, blue, purple, green, yellow, orange, brown, and gray. Also available in
striped configurations. Some colors are subject to economic order quantity. Marked as THHN in all sizes. Also
marked as THWN-2 in sizes 8 AWG and larger or marked as THWN in sizes 14, 12, and 10 AWG. Marked sunlight
resistant in sizes 2 AWG and larger. Sizes 14, 12, and 10 AWG are available with SIMpull® Technology only in
SIMpull BARREL™ cable drum or SIMpull® CoilPAK™ configurations.
APPLICATIONS
STANDARDS & REFERENCES
CONSTRUCTION
SIMpull THHN®
Copper THHN Wire & Cable