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 Electrical Code 2. When used as Type THHN, or T90 Nylon conductor is suitable for use in dry locations at temperatures not to exceed 90 °C. When used as Type THWN-2 or TWN75, conductor is suitable for use in wet or dry locations at temperatures not to exceed 90 °C or not to exceed 75 °C when exposed to oil. When used as Type MTW, conductor is suitable for use in wet locations or when exposed to oil at temperatures not to exceed 60 °C or dry locations at temperatures not to exceed 90 °C (with ampacity limited to that for 75 °C conductor temperature per NFPA 79). Conductor temperatures not to exceed 105 °C in dry locations when rated AWM and used as appliance wiring material or when used asT90 Nylon. Voltage for all applications is 600 volts. This cable may be installed without the need for pulling lubricant.
THWN-2 or MTW (also AWM) meets or exceeds all applicable ASTM specifications, UL Standard 83, UL 1581, UL Standard 1063 (MTW), CSA, NOM-ANCE 90° C, Federal Specification A-A-59544, and requirements of the National Electrical Code.
VW-1 - Sizes 14 through 1 AWG
T90 Nylon - Sizes through 500 kcmil
TWN 75 - Sizes through 500 kcmil
Sunlight Resistant - Colors available in sizes 2 AWG and larger
THWN-2 or MTW copper conductors are annealed (soft) copper, unilay compressed strand,
insulated with a tough heat and moisture resistant polyvinyl chloride (PVC), over which a UL Recognized equal jacket is applied. Available in black, white, red, blue, purple, green, yellow, brown, orange, and gray. Some colors standard, some subject to economic order quantity. Conductor sizes 2 AWG and larger listed and marked sunlight resistant in all colors.
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Nassau Electrical carries a wide selection of Copper THHN and THWN-2 wire. If you can not find the Copper THHN or THWN-2 cable you need, please contact us with your Copper THHN or THWN-2 cable request.