The 8/2 UF-B Underground Feeder Cable carries power from buildings to outdoor installations. It is rated for 600 volts and can be buried directly in the ground without conduit. It can also be used in outdoor sunlight and in wet or damp locations.
It is used for feeder circuits and for branch circuits with proper overcurrent protection. Typical uses include outdoor lighting, outdoor outlets and receptacles, pump systems, HVAC unit wiring, and underground branch circuits. It can also be used for indoor wiring in areas exposed to moisture.
The 8/2 size suits 240V circuits without a neutral, such as water heaters and baseboard heaters that need only two hot wires. It also suits 120V circuits with long runs, where thicker wire helps prevent voltage drop. The conductors are stranded Type THHN/THWN, laid parallel with an uninsulated grounding conductor.
- Type
- UF-B underground feeder cable
- Conductor
- Stranded copper, Type THHN/THWN
- Gauge
- 8 AWG, 2 conductors plus ground
- Ground
- Uninsulated grounding conductor
- Voltage rating
- 600V
- Ampacity, direct burial
- 40 amps
- Ampacity, in duct
- 40 amps
- Color
- Gray
- Installation
- Direct burial without conduit; outdoor, underground and wet locations