Southwire #: 56178599

600 Volt Alumaflex® Brand Aluminum Alloy (AA-8176) Conductor. Thermoplastic Insulation/SIM Nylon Sheath. Heat, Moisture, Gasoline, Oil, and Sunlight Resistant. Also Rated THWN-2. SIMpull® Technology for Easier Pulling

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Southwire SIMpull THHN® Aluminum THHN Wire & Cable with Alumaflex® Brand conductors are primarily used in conduit and cable trays for services, feeders and branch circuits in commercial or industrial applications as specified in the 2011 National Electrical Code. 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 or coolant. Voltage for all applications is 600 volts. This cable should be installed without application of pulling lubricant.


Stock # 56178599 56178599
Size (AWG or kcmil) (mm2) 900 KCMIL 900 KCMIL
No. of Conductors 1 1
No. of Strands 56 56
Nom. OD (mils) (mm) 1163 29.54 mils mm
Insulation Thickness (mils) (mm) 70 1.78 mils mm
Jacket Thickness (mils) (mm) 10 0.25 mils mm
Nominal Total Weight (lbs/1000') (kgs/km) 1021 1519 lbs/1000' kgs/km
Allowable Ampacity at 60C 355 355
Allowable Ampacity at 75C 425 425
Allowable Ampacity at 90C 480 480

Standards & References

Southwire Aluminum SIMpull THHN® conductors comply with the following:

  • ASTM B-800 and B-801
  • UL Standard 83
  • CSA Standard C22.2 75
  • Federal Specification A-A-59544
  • CT
  • National Electrical Code, NFPA 70
  • NEMA WC-70 Construction Requirements
  • Gas & Oil Resistant II
  • Sunlight Resistant
  • RoHS/Reach Compliant


Southwire SIMpull THHN® conductors are AlumaFlex® Brand AA-8000 series aluminum alloy, compact stranded. Insulated with a tough heat and moisture-resistant polyvinyl chloride (PVC), over which a SIM nylon (polyamide) or UL-listed equal jacket is applied.