Primary GPT Wire · 12 AWG - Black - 100 ft (30.5 m) - GPT stranded copper - Techspan 768030

What this product is for

This product is a 12 AWG black GPT primary wire for low-voltage electrical wiring, equipment leads, trailer wiring, and automotive circuit work. It is supplied as a 100 ft (30.5 m) spool and uses stranded copper with PVC insulation for flexibility during routing and termination.

Use for

Use for 12 V and 24 V vehicle wiring, trailer circuits, control wiring, repairs, harness work, and other general-purpose primary wire applications where a single insulated conductor is needed. Black insulation is commonly used for identified circuit runs where colour coding matters.

Avoid for

Avoid using this wire as building wire inside walls where a code-approved cable or conductor type is required, and avoid applications that call for jacketed multi-conductor cable, direct burial cable, or high-temperature specialty wire unless the exact specification matches the installation requirement.

Best for

Best for electricians, service shops, trailer installers, and maintenance teams needing a flexible 12 AWG single conductor in a manageable spool length for shop stock and field repairs.

Installed in

Typically installed in vehicles, trailers, equipment panels, battery and accessory circuits, and low-voltage control assemblies, subject to equipment design and local code requirements.

Why this product exists

This wire provides a practical single-conductor option for low-voltage circuits where installers need colour identification, stranded flexibility, and a shorter spool size than bulk reels.

Compared with similar products

Compared with heavier 10 AWG wire, 12 AWG is easier to route in tighter spaces. Compared with smaller 14 AWG wire, 12 AWG is commonly chosen where higher current capacity or lower voltage drop is desired. As typical guidance only, longer low-voltage runs may require upsizing to limit voltage drop. Actual performance depends on circuit length, load, termination quality, insulation rating, and installation conditions.

Specifications

• Brand: Techspan
• Manufacturer part number: 768030
• Product type: GPT primary wire
• Wire size: 12 AWG
• Conductor: Stranded copper
• Insulation: PVC
• Colour: Black
• Length: 100 ft (30.5 m)
• Outside diameter: approximately 0.145 in (3.7 mm)
• Typical stranding: 19 x 25 x 0.018 in, based on Techspan catalogue listing