6 AWG THHN/THWN-2 Aluminum Wire
Aluminum building wire for conduit and raceways, with PVC insulation and a nylon jacket, at a lower cost per foot than copper. Rated 600 V, 90 C.
- Conductor: stranded aluminum
- Voltage rating: 600 V
- Temperature rating: 90 C
- Listing: UL Listed, c(UL) Listed, RoHS Compliant
Per foot at 50 ft$0.3977/ft

Spools ship by Thu, Oct 8. Cut lengths ship by Fri, Oct 9.
For an order placed now. Orders after 12 PM ET, and on weekends and holidays, count from the next business day.
You get a tracking number by email the day it ships.
Free UPS Ground shipping from $499 to the lower 48. A reel over 150 lb ships by freight, charged in the cart.
Cut wire is final sale. Uncut spools can come back within 30 days for a 15 percent restocking fee. Returns policy
Questions about this wire?
- Call (509) 303-4726, Mon to Fri, 9am to 5pm Eastern
- Email sales@wirewombat.com
Request a callback
At a glance
| Ampacity | 50 A (NEC Table 310.16, 75 C column) |
|---|---|
| Largest breaker | 50 A, or the next standard size up where NEC 240.4(B) allows. With 60 C rated terminals (the NEC 110.14(C) default at 100 A or less unless the equipment is marked 75 C) it is 40 A. |
| Voltage drop at 100 ft | 8.08 V, 3.4 percent at 50 A and 240 V single phase |
| Run length for 3 percent drop | About 85 ft one way at 50 A and 240 V |
| Outside diameter | 0.239 in |
Questions about this size
- What breaker can 6 AWG THHN/THWN-2 Aluminum Wire go on?
- Its ampacity is 50 A (75 C column of NEC Table 310.16). The breaker can be that size, or the next standard size up where NEC 240.4(B) allows it. Derate first for more than three current-carrying conductors or high ambient heat. With 60 C rated terminals (the NEC 110.14(C) default at 100 A or less unless the equipment is marked 75 C) it is 40 A.
- How far can I run it before voltage drop is a problem?
- At 50 A on a 240 V single phase circuit, about 85 ft one way keeps the drop at 3 percent, the figure an informational note to NEC 210.19(A) suggests for branch circuits. Try other loads in the voltage drop calculator.
- Can it be buried directly in the ground?
- No. It is not rated for direct burial. Run it in conduit, which counts as a wet location below grade, or use a direct burial type such as UF-B, USE-2 or URD.
- Can I buy it by the foot?
- Yes, cut to length in whole feet from 50 ft, or on 500, 1,000 ft spools. Cut wire is final sale; uncut spools can be returned within 30 days.
Full specifications
| Type | THHN/THWN-2 aluminum |
|---|---|
| Gauge | 6 AWG |
| Conductors | 1 |
| Conductor | aluminum |
| Stranding | stranded |
| Insulation | PVC |
| Voltage rating | 600 V |
| Temperature rating | 90 C |
| Listing | UL Listed, c(UL) Listed, RoHS Compliant |
| Nominal O.D. | 0.239 in |
| Ampacity, NEC Table 310.16, 75 C column | 50 A |
| Sold by the foot | From 50 ft to 5,000 ft, in whole feet |
| Standard spools | 500, 1,000 ft |
| Ships in | 1 to 2 business days from the order day |
Insulation, ratings, listing and weight are confirmed from the manufacturer's sheet with your quote.
Spec sheet on request.
Questions
- What is the smallest cut?
- 50 ft for this product, in whole feet, up to 5,000 ft per row. Each length ships on its own coil.
- Can I return cut wire?
- No. Cut wire is final sale. Uncut, unopened spools and boxes can come back within 30 days for a 15 percent restocking fee.
- When does it ship?
- The ship dates beside Add to cart are for this product and count business days in Eastern time. You get a tracking number by email the day it ships.
Other gauges of this wire
From $/ft- 4 AWG4 AWG THHN/THWN-2 Aluminum Wire$0.4947
- 3 AWG3 AWG THHN/THWN-2 Aluminum Wire$0.4656
- 2 AWG2 AWG THHN/THWN-2 Aluminum Wire$0.6208
- 1 AWG1 AWG THHN/THWN-2 Aluminum Wire$0.8536
- 1/0 AWG1/0 AWG THHN/THWN-2 Aluminum Wire$0.9603
- 2/0 AWG2/0 AWG THHN/THWN-2 Aluminum Wire$1.13
- 3/0 AWG3/0 AWG THHN/THWN-2 Aluminum Wire$1.40
- 4/0 AWG4/0 AWG THHN/THWN-2 Aluminum Wire$1.56
- 250 kcmil250 kcmil THHN/THWN-2 Aluminum Wire$2.02
- 300 kcmil300 kcmil THHN/THWN-2 Aluminum Wire$2.39
- 350 kcmil350 kcmil THHN/THWN-2 Aluminum Wire$2.16
- 400 kcmil400 kcmil THHN/THWN-2 Aluminum Wire$2.73
- 500 kcmil500 kcmil THHN/THWN-2 Aluminum Wire$3.44
- 750 kcmil750 kcmil THHN/THWN-2 Aluminum Wire$4.87
