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SOUTHWIRE 12 AWG 3-Conductor Solid Copper THHN/THWN Building Wire - Copper THHN/THWN Building Wires
SOUTHWIRECopper THHN/THWN Building Wires

SOUTHWIRE 12 AWG 3-Conductor Solid Copper THHN/THWN Building Wire

The SOUTHWIRE Building Wire: Copper is a 12 AWG, 3-conductor, solid copper THHN/THWN building wire (MPN 58389703) rated for 600 V. It comes in a 350 ft length with black, green, and white insulation. This product is…

SKU 3G-OTH-46510

Brand
SOUTHWIRE
Item
12 AWG 3-Conductor Solid Copper THHN/THWN Building Wire
Category
Copper THHN/THWN Building Wires
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

SOUTHWIRE
Manufacturer Part Number
58389703
Type
12 AWG, Solid, Black/Green/White, THHN
Lg
350 ft
Voltage
600 V
Conductors
3

Technical Documents

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SOUTHWIRE Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SOUTHWIRE Building Wire: Copper is a 12 AWG, 3-conductor, solid copper THHN/THWN building wire (MPN 58389703) rated for 600 V. It comes in a 350 ft length with black, green, and white insulation. This product is designed for general-purpose wiring applications.

Frequently Asked Questions

What is SOUTHWIRE 12 AWG 3-conductor building wire used for?

This SOUTHWIRE THHN/THWN building wire is used for general-purpose wiring in residential, commercial, and industrial applications. It is suitable for conduit, raceway, and cable tray installations where a 600 V rating and solid copper conductors are required.

What are the specifications of SOUTHWIRE 58389703 building wire?

The SOUTHWIRE 58389703 building wire is a 12 AWG, 3-conductor, solid copper THHN/THWN cable rated for 600 V. It has black, green, and white insulation and comes in a 350 ft length. It meets THHN/THWN standards for dry and wet locations.

Where to buy SOUTHWIRE building wire in worldwide?

You can source SOUTHWIRE building wire through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide locations. Contact us for availability and lead time on this 12 AWG 3-conductor cable.

How to select the right THHN building wire gauge for a project?

Select THHN wire gauge based on the circuit's ampacity and voltage drop requirements. For general 20 A circuits, 12 AWG copper is standard. Always consult the National Electrical Code (NEC) for conductor sizing, and verify insulation type (THHN/THWN) matches the installation environment.

Used in

Common applications for SOUTHWIRE
Commercial construction — Southwire THHN/THWN-2 building wire (750 kcmil) for feeder circuits in conduit systems
Industrial maintenance — Southwire 8 AWG THHN/THWN-2 for motor branch circuits in wet locations
Outdoor job sites — Southwire 50 ft extension cord (12/3 SJTW, L5-20P) for powering 20 A equipment
Fixture wiring — Southwire 18 AWG TFFN wire for control panels and lighting fixtures in dry environments
Temporary power distribution — Southwire 25 ft extension cord (14/3 SJTW) for portable tools on construction sites
Workshop lighting — Southwire AL60CSW LED work light for high-bay illumination in maintenance bays
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SOUTHWIRE Products

3G Electric supplies SOUTHWIRE copper thhn/thwn building wires. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
12 AWG stranded copper building wire with three conductors (black, green, white) rated for 600 V. THHN/THWN insulation suitable for general-purpose power and lighting circuits in conduit or raceway installations. 350 ft length
SOUTHWIRE
12 AWG stranded copper building wire with three conductors (black, green, white) rated for 600 V. THHN/THWN insulation suitable for general-purpose power and lighting circuits in conduit or raceway installations. 350 ft length
Single solid 12 AWG copper conductor with THHN/THWN insulation, rated 600 V. Tan jacket, 2500 ft length. Suitable for general-purpose wiring in conduit, raceway, and cable tray installations in dry and damp locations
SOUTHWIRE
Single solid 12 AWG copper conductor with THHN/THWN insulation, rated 600 V. Tan jacket, 2500 ft length. Suitable for general-purpose wiring in conduit, raceway, and cable tray installations in dry and damp locations
Single-conductor stranded copper building wire rated for 600 V. Suitable for general-purpose wiring in conduit or raceway installations, commonly used for grounding or switching applications in commercial and industrial settings
SOUTHWIRE
Single-conductor stranded copper building wire rated for 600 V. Suitable for general-purpose wiring in conduit or raceway installations, commonly used for grounding or switching applications in commercial and industrial settings
Single-conductor stranded copper building wire with THHN/THWN-2 insulation, rated 600 V. Suitable for general-purpose power distribution, lighting, and control circuits in conduit, raceway, or cable tray installations. Color-coded green for grounding or identification
SOUTHWIRE
Single-conductor stranded copper building wire with THHN/THWN-2 insulation, rated 600 V. Suitable for general-purpose power distribution, lighting, and control circuits in conduit, raceway, or cable tray installations. Color-coded green for grounding or identification
Stranded copper building wire, 10 AWG, single conductor, rated 600 V. Suitable for general-purpose power and lighting circuits in conduit, raceway, and cable tray applications in dry and damp locations
SOUTHWIRE
Stranded copper building wire, 10 AWG, single conductor, rated 600 V. Suitable for general-purpose power and lighting circuits in conduit, raceway, and cable tray applications in dry and damp locations
Copper building wire, 3 AWG, single conductor, stranded, with green THHN/THWN insulation. Rated for 600 V. Suitable for general-purpose power distribution in conduit or raceway installations
SOUTHWIRE
Copper building wire, 3 AWG, single conductor, stranded, with green THHN/THWN insulation. Rated for 600 V. Suitable for general-purpose power distribution in conduit or raceway installations

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Single-conductor solid copper building wire, 12 AWG, rated 600 V. Suitable for general-purpose power and lighting circuits in conduit, raceways, and wet or dry locations. Jacket color: yellow. Length: 2000 ft
SOUTHWIRE
Single-conductor solid copper building wire, 12 AWG, rated 600 V. Suitable for general-purpose power and lighting circuits in conduit, raceways, and wet or dry locations. Jacket color: yellow. Length: 2000 ft
Copper building wire, 4 AWG, single stranded conductor, blue insulation, 500 ft length. Rated 600 V, THHN/THWN. For power distribution, lighting, and control circuits in conduit, raceway, or cable tray
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Copper building wire, 4 AWG, single stranded conductor, blue insulation, 500 ft length. Rated 600 V, THHN/THWN. For power distribution, lighting, and control circuits in conduit, raceway, or cable tray
10 AWG, 1-conductor, solid copper THHN/THWN building wire rated for 600 V. Blue insulation, supplied in a 1250 ft length. Suitable for general-purpose power and lighting circuits in conduit or raceway systems for dry and wet locations
SOUTHWIRE
10 AWG, 1-conductor, solid copper THHN/THWN building wire rated for 600 V. Blue insulation, supplied in a 1250 ft length. Suitable for general-purpose power and lighting circuits in conduit or raceway systems for dry and wet locations
This 4 AWG stranded copper building wire is rated for 600 V and suitable for general-purpose power distribution in conduit, raceway, and cable tray installations. The red THHN/THWN insulation allows use in dry and wet locations. Length: 500 ft
SOUTHWIRE
This 4 AWG stranded copper building wire is rated for 600 V and suitable for general-purpose power distribution in conduit, raceway, and cable tray installations. The red THHN/THWN insulation allows use in dry and wet locations. Length: 500 ft
This 12 AWG stranded copper building wire is rated for 600 V and 90 °C in dry locations. Suitable for conduit, raceway, and cable tray installations in general-purpose power and lighting circuits
SOUTHWIRE
This 12 AWG stranded copper building wire is rated for 600 V and 90 °C in dry locations. Suitable for conduit, raceway, and cable tray installations in general-purpose power and lighting circuits
Stranded copper conductor, 8 AWG, single conductor, gray jacket, 500 ft length. Rated 600 V, suitable for general-purpose power and lighting circuits in conduit, raceway, and cable tray applications
SOUTHWIRE
Stranded copper conductor, 8 AWG, single conductor, gray jacket, 500 ft length. Rated 600 V, suitable for general-purpose power and lighting circuits in conduit, raceway, and cable tray applications
14 AWG, 1-conductor, solid copper THHN/THWN building wire rated for 600 V. Suitable for general-purpose building wiring in conduit, including branch circuits, lighting, and control panels in dry and damp locations
SOUTHWIRE
14 AWG, 1-conductor, solid copper THHN/THWN building wire rated for 600 V. Suitable for general-purpose building wiring in conduit, including branch circuits, lighting, and control panels in dry and damp locations
Stranded copper conductor, 4/0 AWG, with THHN/THWN insulation rated for 600 V. Suitable for general-purpose power distribution, lighting, and control circuits in conduit, raceway, or cable tray installations. Supplied in a 500 ft length with black jacket
SOUTHWIRE
Stranded copper conductor, 4/0 AWG, with THHN/THWN insulation rated for 600 V. Suitable for general-purpose power distribution, lighting, and control circuits in conduit, raceway, or cable tray installations. Supplied in a 500 ft length with black jacket