12/3 UF-B Solid Copper Underground Feeder Cable Gray 600V

12/3 UF-B Solid Copper Underground Feeder Cable - 600V

• Allowable Ampacity (Direct Burial): 20 amps

• Allowable Ampacity (In Duct): 20 amps

General Applications

The 12/3 UF-B Underground Feeder Cable is designed to supply power from residential, commercial, and industrial buildings to outdoor installations. Common uses include:

• Powering pumps

• Outdoor lighting systems

• Supplying electricity to outbuildings like sheds or garages

This cable is suitable for:

• Direct burial without requiring additional conduit

• Direct sunlight exposure

It can also serve as a feeder or branch circuit cable when paired with overcurrent protection. It has a 600-volt rating and performs reliably in outdoor and underground settings.

Specific Applications for 12/3 UF-B Wire

• Running three-way switches for outdoor lighting

• Supplying power to outbuildings with multiple circuits

• Connecting split receptacles for separate loads

• Powering HVAC systems or larger outdoor appliances

Also Known As: 

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Construction

Conductor:

• Solid or stranded Type THHN/THWN conductors laid parallel with an uninsulated grounding conductor

• Made of solid annealed bare copper

Insulation:

• Protected by a durable PVC jacket with a nylon covering

• Resistant to:

• Moisture

• Grease

• Corrosion

• Sunlight

• Chemicals

Specifications

• Size (AWG): 12

• Weight per 1,000 ft: 129 lbs

• Outside Diameter: 626 x 183

• Number of Conductors: 3

• Number of Strands: 1

• Jacket Material: PVC

• Insulation and Jacket Thickness: 19 mils

• Jacket Thickness: 30 mils

• Ground Size: 12

Standards and Compliance

• UL Standard 493 for Thermoplastic-Insulated Underground Feeder and Branch Circuit Cables

• ASTM B3 and B8

• UL Standard 83

• Federal Specification A-A-59544

• Recognized for interior wiring in wet, dry, or corrosive locations under the National Electrical Code (NEC)

• Compliant with NEC Article 339-3 (4) for Non-Metallic Sheathed Cable installation

• Meets NEC Articles 300-4(b) and 339

• RoHS / REACH Compliance