“The industry standard for lightweight, cost-effective subpanel feeds, commercial equipment power connections, and branch circuit wiring. Engineered for reliable power distribution inside conduit and raceways, this 3/0 AWG compact-stranded aluminum wire features triple THHN (dry), THWN-2 (wet), and CSA T90 temperature ratings. Protected by a heat- and moisture-resistant PVC insulation and a slick, abrasion-resistant nylon outer jacket, it pulls smoothly without requiring pulling lubricant.”

Key Features & Benefits: 3/0 Aluminum THHN / THWN-2 Building Wire

3/0 Aluminum THHN/THWN-2/T90 electrical wire delivers dependable 600V power distribution for secondary panels, heavy equipment, and branch circuits at a fraction of the weight and cost of copper conductors. Designed for installation in conduit, cable trays, and approved raceways, it provides a reliable, code-compliant solution for commercial buildings, workshop circuits, and agricultural equipment. Featuring compact-stranded AA-8000 series aluminum alloy conductors, 3/0 THHN offers exceptional flexibility and long-term connection reliability. The durable PVC insulation and slick nylon jacket provide high resistance against heat, moisture, gasoline, oil, and mechanical friction during tough conduit pulls.

• Dual 90C Wet/Dry Rating: Dual-rated as THHN for dry locations up to 90C and THWN-2 for wet or dry locations up to 90C (600V maximum).

• AA-8000 Series Aluminum Alloy: Manufactured with high-grade compact-stranded AA-8000 series aluminum for dependable electrical conductivity, reduced weight, and easier handling.

• Cable Tray (CT) Approved: Approved for use in cable trays (1/0 AWG and larger) as well as conduit and raceways.

• Low-Friction Nylon Outer Jacket: Abrasion-, heat-, and moisture-resistant PVC insulation encapsulated in a clear, slick nylon jacket that allows installation without pulling lubricant.

• Cut to Length by the Foot: Order only the exact footage required for your run, eliminating jobsite waste and unused spools.

Technical Specifications: 3/0 Aluminum THHN / THWN-2 Wire

• Application: General-purpose 600V building wire applications in new construction, commercial feeders, cable trays, or rewiring for wet or dry locations.

• Conductor Size: 3/0 AWG.

• Conductor Material: Compact Bare AA-8000 Series Aluminum (Class B Stranded).

• Conductor Diameter: 0.423 inches.

• Voltage Rating: 600 Volts Maximum.

• Insulation Material: Polyvinyl Chloride (PVC).

• Insulation Thickness: 0.050 inches.

• Jacket Material: Clear Abrasion, Heat, & Moisture-Resistant Nylon.

• Jacket Thickness: 0.007 inches.

• Overall Diameter: 0.537 inches.

• Net Weight: 211 lbs per 1,000 ft.

• Ampacity (60C Conductor Rating – NEC): 130 Amps.

• Ampacity (75C Conductor Rating – NEC): 155 Amps.

• Ampacity (90C Conductor Rating – NEC): 175 Amps.

• Compliance & Standards: UL 83, UL 1685, CUL, CSA C22.2 No. 75 (T90), CT Use Rated (1/0 & larger), NEC, CEC, NEMA WC-70/ICEA S-95-658, ASTM B800, ASTM B801, ASTM B836, Federal Spec AA-59544, VW-1/FT1 Flame Test, Sunlight Resistant, Gas & Oil Resistant II.

Common 3/0 THHN / THWN-2 Applications

• Subpanel & Main Feeder Runs: High-capacity power feeders connecting main service disconnects to 150A or 200A subpanels in commercial facilities, workshops, multi-family developments, and large residential buildings.

• Commercial Equipment & Industrial Feeds: Dedicated power circuits for heavy industrial HVAC systems, commercial chillers, large manufacturing machinery, and high-amp equipment disconnects.

• Cable Tray & Conduit Distribution: Power distribution pulled through PVC, EMT, or rigid metal conduit, as well as overhead cable trays in industrial and utility settings.

• Agricultural & Commercial Power Infrastructure: Primary feeder runs for commercial agricultural facilities, barn power distribution hubs, large well systems, and solar array combiner connections.

Technical Note:All values are nominal and subject to industry tolerances and manufacturer corrections. Specifications are subject to change without notice. It is the buyers responsibility to verify that all materials meet the specific requirements of the project and comply with local electrical codes.

**Ampacities shown are for general use as specified by the National Electrical Code 2017 Edition, Section 310.15 and 240.4(D). Unless the equipment is marked for use at higher temperatures, the conductor ampacities shall be limited to the follwing per NEC 110.14(C): 60C – When terminated to equipment for circuits rated 100 amperes or less marked for 14 through 1 AWG conductors. 75C – When terminated to equipment for circuits rated over 100 amperes or marked for conductors larger than 1 AWG. 90C – THHN dry locations and THWN wet or dry locations for ampacity adjustment purposes using NEC section 310.15.