12/2 UF-B Copper Cable
Underground feeder cable for direct burial branch circuits, with conductors molded into a solid PVC jacket. Rated 600 V, 90 C.
- Conductor: solid copper
- Voltage rating: 600 V
- Temperature rating: 90 C
- Listing: UL Listed, RoHS Compliant
Per foot at 25 ft$0.8730/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 | 20 A (NEC Table 310.16, 60 C column) |
|---|---|
| Largest breaker | 20 A (NEC 240.4(D)) |
| Voltage drop at 100 ft | 7.92 V, 6.6 percent at 20 A and 120 V single phase |
| Run length for 3 percent drop | About 45 ft one way at 20 A and 120 V |
Questions about this size
- What breaker can 12/2 UF-B Copper Cable go on?
- Up to 20 A. NEC 240.4(D) limits 12 AWG copper to 20 A of overcurrent protection whatever the ampacity table says.
- How far can I run it before voltage drop is a problem?
- At 20 A on a 120 V single phase circuit, about 45 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?
- Yes. It is rated for direct burial; the minimum cover is in NEC Table 300.5 (24 in. for direct burial under the general condition).
- Can I buy it by the foot?
- Yes, cut to length in whole feet from 25 ft, or on 250, 500, 1,000 ft spools. Cut wire is final sale; uncut spools can be returned within 30 days.
Full specifications
| Type | UF-B |
|---|---|
| Gauge | 12/2 |
| Conductors | 2 |
| Conductor | copper |
| Stranding | solid |
| Insulation | PVC |
| Voltage rating | 600 V |
| Temperature rating | 90 C |
| Listing | UL Listed, RoHS Compliant |
| Ampacity, NEC Table 310.16, 60 C column | 20 A |
| Jacket color | Gray |
| Sold by the foot | From 25 ft to 5,000 ft, in whole feet |
| Standard spools | 250, 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?
- 25 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.
