Application
THHN/THWN-2 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 Electric Code.
Characteristics
- Voltage Rating : 600V 1000V
- Temperature Rating: THHN: Dry environment at 90 ℃ THWN-2: Dry/Wet Environment 90 ℃ (Universal Type)
- Minimum Bending Radius: Single core – Fixed: 15 x overall diameter
Products Construction
- Conductor: Copper
- Insulation: PVC
- Outer sheath: Nylon
Applicable Standards
ASTM B8
UL 83
UL 1063
UL 1581
Optional
Flame Retardant VW-1
Tear-resistant
Anti-termite
Wear-resistant
Preventing rodent bites
Termite-proof
Smooth surface
Technical Parameters
| Type THHN 600V standard UL 758 CU/PVC/Nylon | ||||||||
| NO./AWG | Conductor NO. | Insulation thickness （mm） | Sheath thickness （mm） | Diameter of cable （mm） | CU weight (kg/km) | Weight of cable (kg/km) | DC Resistance (Ω/km) | Carrying capacity（A） |
| 14AWG | 1 | 0.38 | 0.10 | 2.59 | 18.83 | 23.27 | 8.620 | 25 |
| 14AWG | 7 | 0.38 | 0.10 | 2.80 | 18.72 | 23.61 | 8.620 | 25 |
| 12AWG | 1 | 0.38 | 0.10 | 3.01 | 29.78 | 35.11 | 5.430 | 30 |
| 12AWG | 7 | 0.38 | 0.10 | 3.30 | 30.07 | 36.00 | 5.430 | 30 |
| 10AWG | 1 | 0.51 | 0.10 | 3.81 | 47.54 | 56.20 | 3.410 | 40 |
| 10AWG | 7 | 0.51 | 0.10 | 4.15 | 47.46 | 57.06 | 3.410 | 40 |
| 8AWG | 7 | 0.76 | 0.10 | 5.41 | 75.05 | 92.62 | 2.140 | 55 |
| 6AWG | 7 | 0.76 | 0.13 | 6.43 | 119.18 | 141.17 | 1.350 | 75 |
| 4AWG | 7 | 1.02 | 0.15 | 8.22 | 190.58 | 227.52 | 0.848 | 95 |
| 3AWG | 7 | 1.02 | 0.15 | 8.22 | 190.58 | 227.52 | 0.673 | 115 |
| 2AWG | 7 | 1.02 | 0.15 | 9.75 | 302.66 | 347.65 | 0.534 | 130 |
| 1AWG | 7 | 1.27 | 0.18 | 10.31 | 302.66 | 360.25 | 0.423 | 145 |
| 1/0AWG | 19 | 1.27 | 0.18 | 12.35 | 480.99 | 551.90 | 0.335 | 170 |
| 2/0AWG | 19 | 1.27 | 0.18 | 13.55 | 610.90 | 689.64 | 0.266 | 195 |
| 3/0AWG | 19 | 1.27 | 0.18 | 14.85 | 769.14 | 856.37 | 0.211 | 225 |
| 4/0AWG | 19 | 1.27 | 0.18 | 16.30 | 967.12 | 1063.81 | 0.167 | 260 |
| 250MCM | 37 | 1.52 | 0.20 | 18.07 | 1145.39 | 1271.88 | 0.142 | 290 |
| 300MCM | 37 | 1.52 | 0.20 | 19.47 | 1375.09 | 1512.44 | 0.118 | 320 |
| 350MCM | 37 | 1.52 | 0.20 | 20.73 | 1599.76 | 1746.88 | 0.101 | 350 |
| 400MCM | 37 | 1.52 | 0.20 | 21.92 | 1827.55 | 1983.90 | 0.0885 | 380 |
| 500MCM | 37 | 1.52 | 0.20 | 24.09 | 2281.94 | 2455.12 | 0.0709 | 430 |
| 600MCM | 37 | 1.78 | 0.23 | 24.67 | 2281.94 | 2486.98 | 0.0590 | 475 |
| 750MCM | 61 | 1.78 | 0.23 | 29.40 | 3437.85 | 3685.77 | 0.0472 | 520 |
| 1000MCM | 61 | 1.78 | 0.23 | 33.27 | 4566.20 | 4849.21 | 0.0350 | 615 |
FAQ
What is American standard nylon sheathed wire?
It refers to wires that comply with UL standards in the United States and have a layer of nylon sheath on top of PVC insulation.
What is the function of nylon sheath?
Protect the insulation layer, improve wear resistance, make the wire smoother and easier to pass through the conduit, and also prevent rodent bites and chemical corrosion.
Is this type of wire flame retardant?
Flame retardant, usually meeting VW-1 flame retardant rating, can self extinguish after leaving the flame.
How to become our distributor or agent ?
EXW, FOB, CFR,CIF,DDU,DDP and we will recommend the most suitable delivery method according to your specific needs.
