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Southwire's THHN and THWN is a multi-purpose building wire used in conduit and cable trays for service, feeders and branch circuits in commercial and industrial applications. It is also used as a conductor in NM-B, UF-B, SER, SEU and MC.

American wire gauge (AWG) size calculator and chart. * @ 68°F or 20°C. ** Diameter and cross sectional area do not include the insulation. *** Results may change with real wires: different resistivity of material and number of strands in wire. Voltage drop calculator .

12 AWG Silicone Wire 50FT, Extra Flexible 12 Gauge Stranded Copper Wire, High Temp 392℉ 600V - RC, Automotive, Battery | Tinned Copper Conductor - 25FT Red & 25FT Black Spools

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12 AWG wire is one of the most commonly used wire sizes in electric engineering. With 25A ampacity at a median of 75°C temperature, it is the best wire to be used for 20 amp services (of course, you have to account for 80% NEC requirement, as we explain later on).

Use this wire in high-voltage applications that require 10, 000 volts DC or greater, such as in high-power signs and lasers. Install this copper wire in conduit and cable trays throughout commercial and industrial buildings. It's also known as branch circuit wire.

12 Gauge Wire, 12 AWG Wire 2 Conductor Electrical Wire, Flexible/12V Low Voltage/Oxygen-Free Tinned Copper Stranded PVC Cord, 12/2 Wire for Automotive Marine LED Strips Lighting (30FT-9.1M) 4.7 out of 5 stars

Typical household wiring is AWG number 12 or 14. Telephone wire is typical AWG 22, 24, or 26. The table below indicates the current ratings of PVC-insulated single and multicore wiring cables.