Reliable, Versatile, and Built for Precision Underground Locating
When it comes to general-purpose wiring and underground utility marking, TW/THW tracer wire from Advance Electrical delivers the performance, durability, and reliability professionals depend on. Whether you're wiring a building or laying tracer wire alongside new pipelines, our wire is engineered to support efficient installations and accurate utility locating—keeping your projects compliant and safe.
TW/THW (Tracer Wire) is designed for a wide range of applications, making it a staple in residential, commercial, and industrial projects. It’s used for:
General-purpose wiring circuits
Machine tool wiring
Internal wiring of appliances
Underground pipe and utility line tracing
In underground applications, tracer wire is laid alongside pipes, conduits, or other non-metallic lines. This allows utility crews to locate buried infrastructure quickly and safely for future maintenance, excavation, or expansion—reducing risk and saving time.
Tracer wire must perform reliably in a variety of environmental conditions. That’s why Advance Electrical provides TW/THW wire that meets the highest standards of material quality and construction:
Conductor: Solid or stranded copper per ASTM B-1, B-3, or B-8
Insulation: High molecular weight polyethylene (HMWPE) per ASTM D-1248
Heat & Moisture Resistance: Polyvinyl chloride (PVC) insulation provides protection in both dry and wet environments
Operating Temperature: Up to 70°C (158°F) in wet or dry conditions, with insulation that resists heat up to 90°C (194°F) in dry areas
Voltage Rating: Available in 20 and 30 mil (30–300V) or 45 mil (600V) insulation thickness
Whether it’s heat, moisture, or underground pressure, this wire is built to last and protect.
Advance Electrical offers tracer wire in a wide selection of sizes and colors to meet project specifications:
Sizes: Available in 6 through 14 AWG
Colors: A variety of insulation colors available for color-coded installations or customer preferences
With multiple sizing and color options, organizing large jobs or multi-utility projects is easier and more efficient.
At Advance Electrical, we’re more than just a supplier—we’re your project partner. Choosing our TW/THW tracer wire means:
Reliable Availability – We stock a wide range of gauges and colors for fast delivery
Expert Guidance – Our knowledgeable team helps ensure you get the right wire for the right application
Quality Assurance – We source only from trusted manufacturers and provide materials that meet or exceed ASTM standards
Competitive Pricing – Get premium performance without the premium cost
Whether you're wiring a control panel or mapping underground utilities, Advance Electrical’s TW/THW tracer wire is the dependable choice. Designed for long-term performance and precision locating, it’s the wire that works as hard as you do.
Contact us today to request a quote, check stock availability, or speak with a product specialist. Trust Advance Electrical—where quality meets reliability.
Advance Electrical is a worldwide distributor serving the Cathodic Protection, Electric Motor Repair, and Switchgear Industries. From pipeline inspection and installation to motor rewinding and insulation, we stock and provide an extensive array of materials.