There are a few factors that set xhhw 2 apart from thhn thwn2. Xhhw wire is recommended by the electrical distribution industry for commercial, industrial, and institutional building applications. Wire, cables, cords building wire xhhw aluminum compact stranded xhhw 10 awg. Copper building wire type thhnthwn 2 detailed description or construction conductor annealed copper, solid or stranded sizes 2. When used as type thhn, conductor is suitable for use in. We broke down thhn and xhhw in that article, now lets tackle rhw, rhw2, use2 and rhh building wire. Sizes 1 awg and larger are available printed with true sequential footage on master reels. Mtw and thhn can both feature a bare copper conductor, however thhn is available with an. Ampacities of not more than three currentcarrying conductors in raceway, cable or earth. Tray cable tc tcer xhhw pvc with ground 12ga500mcm.
Since 1997, advanced digital cable adc has grown to become a leading manufacturer of copper and aluminum wire and cable products in the united states by providing market solutions for a wide range of industries and applications. Southwire simpull thhn or thwn2 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. For applications requiring type thhn or thwn2, the conductor is appropriate for use in wet or dry locations at temperatures not. Southwire companys power cable manual and southwire companys.
Encore wire s pvc jacketed metalclad cable is available in sizes 14 awg through 750 kcmil. Type thhn thwn2 is permitted for new construction or rewiring for 600 volt applications. Type thhn thwn2 is permitted for new construction or. Its tough, thermoset construction allows for its use in demanding applications without. And if you are lucky, you might never get to verify. Conductors shall be ullisted type thhn or thwn2 or mtw or awm, suitable for operation at 600 volts at conductor temperatures not to exceed 105c. It can be used in conduit, ducts and trays for service feeders and branch circuits in industrial and commercial installations. Xhhw 2 is not subject to plasticizer migration, unlike thhn thwn2 xhhw 2 has a higher emergency operating temperature and short. Xhhw 2 wire also features better low temperature and electrical properties than thhn thwn wire, and it is the preferred choice of the two. Thermoplastic and thermoset are two common types of cable insulation, and its important to understand the strengths and weaknesses of each when designing. Alan wire type xhhw2 conductors are primarily used in conduit or other recognized raceways for services and feeders as specified by the nec national. The wire is ul listed and is rated for up to 600volt. Type thhn thwn2 building wire is intended for general purpose applications and may be installed in conduit, duct, or other recognized raceways in wet 60 o c oil90 o c water or dry 105 o c locations. With thhn you have to start the derating calculation at the 75c ampacity.
For both new work and rewiring applications, the smaller diameter of wire permits additional circuits or larger conductors to be installed in the conduit without exceeding maximum fill. All electric wires and cables must be labeled appropriately by following the national electric code nec guidelines. Ul standard 44 and federal specification jc30b nec, astm b800, b801 compliant to rohs, directive 200295ec, icea s95658, nema wc 70 1. Although both mtw wire and thhn wire are well suited for use in similar applications, there are a few characteristics that set them apart and can make a big difference when trying to decide which type of cable will best meet your needs. As excerpted from the 2002 national electrical code.
Southwire type thhn or thwn2 conductors are primarily used in conduit and cable trays for services, feeders, and branch circuits in commercial or industrial applications as specified in the 2008 national electrical code. Suitable for use in conduit or other recognized raceways for services, feeders and branch circuit wiring. Sis xhhw 2 lszh industrial wire is a one conductor, unjacketed, power cable utilizing flexible class k conductor. Awg, rhw, cnn, use2, thhn, thw, xlpe new mexico state. Market product description specification number revision date page number stabiloy brand commercial stabiloy brand thhn thwn2 high speed hs pvc, lowvoltage power, 600 v, ul type thhn thwn2, single conductor, aluminum 5290a june 2017 stabiloy brand xhhw 2 high speed hs.
Data are approximate and subject to normal manufacturing tolerances. Pvc, lowvoltage power, 600 v, ul type thhnthwn2, single conductor, aluminum. Type thhn mtw thwn2 t90 copper conductor are primarily used in conduit for services, feeder, and branch circuits in commercial or industrial applications as specified in the national electrical code. Type xhhw 2 conductors are primarily used in conduit or other recognized raceways for services, feeders, and branch circuit wiring, as specified in the national electrical code nec. For help with 10 awg xhhw 2 stranded aluminum black 0. General cables copper building wire consists of types xhhw 2, thhn thwn2, and tffn along with canadian constructions such as rw90, rwu90, and t90 that come in a variety of colors and feature the high speed, extra low friction jacket designed to improve installation even. Thermoplastic and thermoset are two common types of cable insulation, and its important to understand the strengths and weaknesses of each when designing and building a new facility, machine, or appliance. Simpull thhn conductors are designed to be used without application of pulling.
Benefits of xhhw conductors versus thhn sparkyjunior electrical op. Both xhhw 2 wire and thhn thwn wire can serve your electrical wire needs, but you should know the difference in cost, insulation and electrical properties before making any purchase. Xhhw 2 aluminum 600v description alan wire type xhhw 2 conductors are primarily used in conduit or other recognized raceways for services and feeders as specified by the nec national electrical code. Nolube simpull thhn cable is available in all colors with aluminum or copper conductors. In addition to the specifications noted above, the main difference between thhn thwn thwn2 and xhhw xhhw2 and is in the wires jacket. It is ul listed and may be used in wet or dry locations. Type thhn thwn2 is permitted for new construction or rewiring for 600volt applications. In addition to the specifications noted above, the main difference between thhn thwn thwn2 and xhhw xhhw 2 and is in the wire s jacket. Insulation is constructed of abrasion, moisture and heatresistant, crosslinked polyethylene xlp. Type thhn thwn2 building wire is intended for general purpose applications as defined by the national electrical code nec.
Products related to 1axhhwablax0 10 awg xhhw 2 stranded aluminum black 0. Which may not matter if you dont have a derate issue. Rhw, rhw2, use2 and rhh building wire explained multicom. The national electrical code nec article 310 describes the specific applications and installation for this product. Xhhw 2 is a single insulated copper conductor with thermoset, crosslinked polyethylene xlp insulation. Ampacity in accordance with nec for not more than three conductors. You may want to find out the reasoning why it was preferred by the designer.