• THHN THWN - 2 Copper Wire

    Product Details

    THHN is an acronym meaning Thermoplastic High Heat Resistant Nylon referring to a resin toughened through the process of heating and then slowed cooling to enhance its insulation capabilities. THWN on the other hand refers to Thermoplastic Heat and water resistant nylon. These acronyms make mention to the kind of insulation used on the cable. The coating of nylon provides heat resistant and water resistant properties to protect the conductors. Due to the nylon properties, the cable is sheltered from the corrosive effects of long exposure to sunlight and moisture that could render the cable useless without the intervention of the insulation. Another advantage of the cable insulation is to protect against electric shock allowing safe handling and also cutting down the risk of occurrence of a fire.Nassau electrical is a dedicated cable shop whose products are of high quality and wide variety.

    Installation
    While the THHN THWN – copper 2 wire can be used outside the enclosure and protection of a conduit or cable tray it is good practice to install it through conduits instead. These enclosures protect the cable from scratching and tearing. Moreover, the cable is more popularly used in conduits. Compared to the armored cable, the THHN THWN – copper 2 cable is a more economical option especially when used in conduits. This is so even though the armored cable has the advantage of multiple layers of armory.

    Application
    There are THHN THWN – copper 2 wires of different gauges with each of the sizes having a limit to the specific amount of amperage it can support. For this reason, the cable is used across the world in numerous industrial and domestic applications. In addition to that, the wires are included as part of other complex cables. Made from copper wire conductors, THHN THWN – copper 2 cable has powerful and reliable conduction capabilities. In addition to the superb conductivity of the cable, the copper conductors are also color coded.

    Internal Wiring Applications
    The thin models of the cable are suited for use in internal wiring in electronics like TV sets and computers. In internal wiring applications, the advantage of color coding is made quite clear. Having separately colored conductors helps in doing organized work, considering the large number of circuits that need to be connected in this case. The copper conductors used in THHN THWN – copper 2 cables have gone through the process of annealing which makes them much more flexible. The resulting enhanced flexibility is a useful feature allowing lengthy cables to be fitted into a small space.

    Apart from application in internal wiring, the THHN THWN – copper 2 cables with small diameters can also be applied in connecting low rated household appliances and in the lighting circuit. Cables ranging from gauge 14 to 12 can effectively handle the less than 12 ampere ratings of small household equipment. The gauge 14 size is also appropriate for the purpose of transmission of public light signals because of its protection from dryness, impermeability to moisture and durability. Thus it can sustain the amount of power needed to propagate the light signal.

    The large version of the THHN THWN – copper 2 cable on the other hand is used in large house appliances. These equipment have a higher ampere rating and thus a larger cable is needed to supply them with power.

    Industrial applications
    In industrial applications, THHN THWN – copper 2 wires are used mainly as feeder cables and in branch circuits and also for service entry. From the transformer supply, the feeder connects the power supply to the main distribution panel. From here, branch circuits distribute power from the distribution panel through to the interior outlets of the building. The Copper Cable is the preferred choice for this application because it is cheaper and its conductive power is adequate to meet the amperage requirements. Moreover, copper’s antimicrobial capabilities ensure that corrosion from bacterial activities does not occur.

    In the case of service entry application, there is a huge demand on wattage enough to cater for an entire building thus the THHN THWN – copper 2 cable is used. Service entry refers to distribution of power into a building from the stepped down voltage at the transformer.

    I hope this has been an informative piece about the THHN THWN – copper 2 cable, a quality product from Nassau electrical and that it has benefited you greatly. For more help and clarification, feel free to reach out to us. We are always ready, 24/7 to listen and help.

    Join our live chat to stay in touch with us. You are free to send in requests for quotations for our products and we will get back to you.  Look through our catalogue for other products as well. Our products are top quality and our customer service is the friendliest.

    Size
    (AWG or KCMIL)
    Phase Conductor Insulation Thickness Jacket Thickness (mils) Size AWG Stranding Diameter Complete Cable (O.D.) (Mils) Weight Per 1000ft Total (Lbs.) Allowable Ampacity
    60C (Amps) 75C (Amps) 90C (Amps)
    THHN 14 Gauge 15 mls 4 14 19 109 16 15 15 15
    THHN 12 Gauge 15 mls 4 12 19 128 23 20 20 20
    THHN 10 Gauge 20 mls 4 10 19 161 38 30 30 30
    THHN 8 Gauge 30 mls 5 8 19 213 63 40 50 55
    THHN 6 Gauge 30 mls 5 6 19 249 95 55 65 75
    THHN 4 Gauge 40 mls 6 4 19 318 152 70 85 95
    THHN 3 Gauge 40 mls 6 3 19 346 189 85 100 110
    THHN 2 Gauge 40 mls 6 2 19 378 234 95 115 130
    THHN 1 Gauge 50 mls 7 1 19 435 299 110 130 150
    THHN 1/0 Gauge 50 mls 7 1/0 19 474 372 125 150 170
    THHN 2/0 Gauge 50 mls 7 2/0 19 518 462 145 175 195
    THHN 3/0 Gauge 50 mls 7 3/0 19 568 575 165 200 225
    THHN 4/0 Gauge 50 mls 7 4/0 19 624 718 195 230 260
    THHN 250 MCM 60 mls 8 250 37 678 851 215 255 290
    THHN 300 MCM 60 mls 8 300 37 730 1012 240 285 320
    THHN 350 MCM 60 mls 8 350 37 777 1174 260 310 350
    THHN 400 MCM 60 mls 8 400 37 821 1334 280 335 380
    THHN 500 MCM 60 mls 8 500 37 902 1655 320 380 430
    THHN 600 MCM 70 mls 9 600 61 998 1987 355 420 75
    THHN 750 MCM 70 mls 9 750 61 1126 2464 400 475 535
    THHN 1000 MCM 70 mls 9 1000 61 1275 3257 455 545 615

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