400 FT 6/3 UF-B WithGROUND UNDERGROUND FEEDER DIRECT BURIAL WIRE/CABLE

  
UF-B cable may be used underground, including direct burial. Multiple conductor UF-B cable may be used for interior branch circuit wiring in residential or agricultural buildings at conductor temperatures not to exceed 90°C (with ampacity limited to that for 60°C conductors) as specified by the National Electrical Code.