Cut Sheet

SIMpull THHN™ THWN
600 Volts. Copper Conductor
Thermoplastic Insulation/ SIM Nylon Sheath
Heat, Moisture, Gasoline, and Oil Resistant II
Also Rated MTW and THWN-2
SIM Technology® for Easier Pulling
APPLICATIONS
Southwire SIMpull THHN or 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. Voltage for all applications
is 600 volts. SIMpull THHN conductors are designed to be used without application of pulling lubricant. Allowable
temperatures are as follows:
•
THHN or T90 Nylon- Dry locations not to exceed 90° C
•
THWN-2- Wet or dry locations not to exceed 90° C or locations not to exceed 75° C when exposed to oil
•
TWN75- Wet locations not to exceed 75° C
•
MTW- Wet locations or when exposed to oil at temperatures not to exceed 60° C or dry locations not to exceed 90° C
(with ampacity limited to that for 75° C conductor temperature per NFPA 79)
•
AWM- Dry locations not to exceed 105° C when rated and used as appliance wiring material
SPECIFICATIONS
Southwire SIMpull THHN ® or THWN-2 or MTW (also AWM) comply with:
· ASTM - All applicable standards
· UL Standard 83, 1581, and 1063(MTW)
· T90 Nylon/TWN75 sizes through 1000 kcmil CSA C22.2 No. 75
· NOM-ANCE 90° C
· Federal Specification A-A-59544
· National Electrical Code, NFPA 70
· VW-1 - Sizes 14 through 1 AWG
· CT rated in sizes 1/0 AWG and larger
· FT1
· AWM - Sizes 14 through 6 AWG. MTW available in stranded only
· NEMA WC-70 Construction Requirements
· RoHS/REACH Compliant
Construction
Southwire SIMpull THHN or THWN-2 or MTW copper conductors are soft annealed copper. #14 - 4/0 AWG uses a
combination unilay strand and 250 kcmil and larger uses a compressed copper strand. The wire is insulated with a tough heat
and moisture resistant poly vinyl chloride (PVC), over which a SIM (SLIKQWIK® Infused Membrane) nylon (polyamide) or UL
Recognized equal jacket is applied. Available in black, white, red, blue, purple, green, yellow, orange, brown and gray. Some
colors are subject to economic order quantity.Marked sunlight resistant in sizes 2 AWG and larger.
THWN-2 available in sizes 8 AWG and larger .
Sizes 14 - 10 AWG are available with SIMpull Technology only in SIMpull Barrel configurations.
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