Model NO.
THHN-THWN, TW/THW
Material Shape
Round Wire
Range of Application
Refractory
Certification
ISO9001, CE, CCC
Outer Sheath Material
Nylon
AC Rated Voltage
450 / 750V
Transport Package
100m/Rolls
Specification
THHN-THWN, TW/THW
Thhn-Thwn TW /THW Nylon Outer Jacket Wire Building Electric Wire Applications: 1Type THHN/THWN2 building wire is intended for general purpose applications as defined by the National Electrical Code (NEC)Type THHN-THWN-2 is permitted for new construction or rewiring for 60 volt applications. Applications requiring Type THHN or THWN-
2, the conductor is appropriate for use in wet or dry locations at temperatures not to exceed 90°C or not to exceed 75°C in oil or coolants. Applications requiring Type MTW conductor is appropriate for use in dry locations at 90°C, or not to exceed 60°C in wet locations or where exposed to oils or coolants. Applications requiring Type AWM conductor is appropriate for use at temperatures to not exceed 105°C in dry locations.
Features:Nylon outer jacket for easy pulling. VW-1 rated 14 AWG - 8 AWG. All sizes are rated gasoline and oil-resistant II.
Jacket: A tough, polyamide, Nylon outer covering per UL-1063 and UL-83.
Construction:BUILDING WIRE
UL Listed Types TFFN, THHN/THWN
Insulation: PVC (Poly Vinyl Chloride) with Secondary Nylon Jacket
Conductor: Bare Copper Voltage Rating: 600 Volts
STANDARDS & REFERENCE:THHN or THWN-2* or MTW (also AWM) meets or exceeds all applicable ASTM specifications, UL Standard 83, UL Standard 1063 (MTW), Federal Specification A-A-59544, and requirements of the National Electrical Code.
AWM Conductors shall be UL-listed Type THHN or THWN-2* or MTW or AWM, suitable for
Operation at 600 volts at conductor temperatures not to exceed 105° C.
Underwriters Laboratories Standards UL-83, UL-1063, UL-758
AWM Spec 1316, 1317, 1318, 1319, 1320, 1321
ASTM Stranding Class B3, B8, B787
Federal Specification A-A-59544
Canadian Standards Association C22.2 No. 75
NEMA WC70/ICEA S-95-658
Institute of Electrical and Electronics Engineers
parameter of Thhn-Thwn TW /THW Nylon Outer Jacket Wire Building Electric Wire Conductor | Insulation Thickness (mils) | Jacket thickness (mils) | Nominal O.D | Approx. net weight/1000ft | Allowable ampacities |
Size (AWG or kcmil) | Strands | Solid | Stranded | Solid | Stranded | 60 0 C | 75 0 C | 90 0 C |
14 | 19 | 15 | 4 | 102 | 109 | 15 | 16 | 15 | 15 | 15 |
12 | 19 | 15 | 4 | 119 | 128 | 23 | 24 | 20 | 20 | 20 |
10 | 19 | 20 | 4 | 150 | 161 | 37 | 38 | 30 | 30 | 30 |
8 | 19 | 30 | 5 | / | 213 | / | 62 | 40 | 50 | 55 |
6 | 19 | 30 | 5 | / | 249 | / | 95 | 55 | 65 | 75 |
4 | 19 | 40 | 6 | / | 318 | / | 152 | 70 | 85 | 95 |
3 | 19 | 40 | 6 | / | 346 | / | 188 | 85 | 100 | 110 |
2 | 19 | 40 | 6 | / | 378 | / | 234 | 95 | 115 | 130 |
1 | 19 | 50 | 7 | / | 435 | / | 299 | 110 | 130 | 150 |
1/0 | 19 | 50 | 7 | / | 474 | / | 371 | 125 | 150 | 170 |
2/0 | 19 | 50 | 7 | / | 518 | / | 461 | 145 | 175 | 195 |
3/0 | 19 | 50 | 7 | / | 568 | / | 574 | 165 | 200 | 225 |
4/0 | 19 | 50 | 7 | / | 624 | / | 717 | 195 | 230 | 260 |
250 | 37 | 60 | 8 | / | 694 | / | 850 | 215 | 255 | 290 |
300 | 37 | 60 | 8 | / | 747 | / | 1011 | 240 | 285 | 320 |
350 | 37 | 60 | 8 | / | 797 | / | 1173 | 260 | 310 | 350 |
400 | 37 | 60 | 8 | / | 842 | / | 1333 | 280 | 335 | 380 |
500 | 37 | 60 | 8 | / | 926 | / | 1653 | 320 | 380 | 430 |
600 | 61 | 70 | 9 | / | 1024 | / | 1985 | 355 | 420 | 475 |
750 | 61 | 70 | 9 | / | 1126 | / | 2462 | 400 | 475 | 535 |
1000 | 61 | 70 | 9 | / | 1275 | / | 3254 | 455 | 545 | 615 |