Building Wire

SIMpull THHN® Copper Wire

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Building Wire

SIMpull THHN® Copper Wire

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.
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Application

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

Specifications

measurement
imperial metric
Select a set of products below for more information:
Conductor Allowable Ampacities+
Size (AWG or kcmil) No. of Conductors No. of Strands Nom. OD (mils) (mm) Insulation Thickness (mils) (mm) Jacket Thickness (mils) (mm) Nominal Total Weight (lbs/1000') (kgs/km) Allowable Ampacity at 60C Allowable Ampacity at 75C Allowable Ampacity at 90C
115790 14 AWG 14 AWG 1 1 1 1 106 2.69 15 0.38 5 0.13 15 23 15 15 15 15 15 15
229559 14 AWG 14 AWG 1 1 19 19 113 2.87 15 0.38 5 0.13 16 24 15 15 15 15 15 15
115873 12 AWG 12 AWG 1 1 1 1 118 3.02 15 0.38 4 0.10 23 34 20 20 20 20 20 20
229641 12 AWG 12 AWG 1 1 19 19 132 3.35 15 0.38 6 0.15 25 36 20 20 20 20 20 20
115956 10 AWG 10 AWG 1 1 1 1 152 3.86 20 0.51 4 0.10 36 54 30 30 30 30 30 30
229732 10 AWG 10 AWG 1 1 19 19 165 4.19 20 0.51 5 0.13 39 58 30 30 30 30 30 30
204883 8 AWG 8 AWG 1 1 19 19 219 5.56 30 0.76 7 0.18 64 95 40 40 50 50 55 55
204933 6 AWG 6 AWG 1 1 19 19 255 6.48 30 0.76 7 0.18 96 143 55 55 65 65 75 75
204982 4 AWG 4 AWG 1 1 19 19 320 8.13 40 1.02 7 0.18 153 228 70 70 85 85 100 100
243469 3 AWG 3 AWG 1 1 19 19 348 8.84 40 1.02 7 0.18 189 282 85 85 100 100 115 115
205013 2 AWG 2 AWG 1 1 19 19 380 9.65 40 1.02 7 0.18 235 350 95 95 115 115 130 130
205047 1 AWG 1 AWG 1 1 19 19 437 11.10 50 1.27 8 0.20 300 447 110 110 130 130 145 145
205054 1/0 AWG 1/0 AWG 1 1 19 19 476 12.09 50 1.27 8 0.20 372 554 125 125 150 150 170 170
205062 2/0 AWG 2/0 AWG 1 1 19 19 520 13.21 50 1.27 8 0.20 463 689 145 145 175 175 195 195
205070 3/0 AWG 3/0 AWG 1 1 19 19 570 14.48 50 1.27 8 0.20 576 858 165 165 200 200 225 225
205088 4/0 AWG 4/0 AWG 1 1 19 19 623 15.82 50 1.27 8 0.20 717 1067 195 195 230 230 260 260
205096 250 KCMIL 250 KCMIL 1 1 37 37 680 17.27 60 1.52 9 0.23 842 1254 215 215 255 255 290 290
205104 300 KCMIL 300 KCMIL 1 1 37 37 749 19.02 60 1.52 9 0.23 1014 1509 240 240 285 285 320 320
205112 350 KCMIL 350 KCMIL 1 1 37 37 799 20.29 60 1.52 9 0.23 1178 1753 260 260 310 310 350 350
205120 400 KCMIL 400 KCMIL 1 1 37 37 844 21.44 60 1.52 9 0.23 1338 1992 280 280 335 335 380 380
205138 500 KCMIL 500 KCMIL 1 1 37 37 931 23.65 60 1.52 10 0.25 1662 2474 320 320 380 380 430 430
321471 600 KCMIL 600 KCMIL 1 1 61 61 1026 26.06 70 1.78 10 0.25 1989 2959 350 350 420 420 475 475
320994 750 KCMIL 750 KCMIL 1 1 61 61 1130 28.70 70 1.78 11 0.28 2468 3674 400 400 475 475 535 535
289710 1000 KCMIL 1000 KCMIL 1 1 61 61 1277 32.44 70 1.78 10 0.25 3260 4851 455 455 545 545 615 615

Standards & References

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

Construction

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.

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