Sell 1/0, 2/0, 3/0 and 4/0 Wire in California

We buy aught-size wire in California, including usable reels, partial reels and scrap copper cuts. To sell 4/0 wire, send its complete markings so we can distinguish copper building wire, aluminum service cable, flexible power cable and shielded MV products.

Four aught sizes, several very different products

The sequence is 1/0, 2/0, 3/0 and 4/0, spoken one-aught through four-aught. It follows 1 AWG and increases in conductor area at each step. A 1/0 marking is not shorthand for 1 AWG.

Our wire-size hub shows the full progression. Aught sizes are still AWG designations. They do not become kcmil (MCM) sizes just because the conductors are heavy or the reel is wooden.

A 4/0 feeder, a 4/0 welding lead and a 4/0 URD assembly can look very different when unreeled. We need to identify what is actually for sale before comparing reusable inventory value with recoverable copper value.

Aught-size area and construction table

These rounded circular-mil areas describe the nominal conductor, not its outer covering. Types below are representative surplus examples rather than installation approvals or universal manufacturer ranges.

Conductor diameter depends on strand arrangement. Compressed or compact products reduce spaces between strands, while flexible products use many finer wires. Those differences do not convert a 4/0 conductor into a larger nominal area.

The next common building-wire group starts at 250 kcmil, which is larger than 4/0. For those reels, use our large kcmil wire buying details. Keep decimal sizes on specialty flexible cable exactly as printed rather than rounding them into an aught size.

Sell 4/0 wire with the service assembly identified

Single-conductor THHN or XHHW-2 often appears as surplus feeder and service stock. Record copper or aluminum, color, voltage and exact type. An original tag tied to a continuous remnant provides stronger identification than a loose handwritten size note.

Aluminum feeder inventory includes compact building wire and cable assemblies. It must not be valued from copper weight tables. We distinguish modern building-wire alloys from utility secondary constructions using actual metal and alloy markings.

For SER and SEU cable, the largest conductor does not describe the entire assembly. Copy the full size string and identify the style. A final '2' in a size string means 2 AWG unless the slash and zero are actually present.

Low-voltage aluminum URD may have several insulated conductors assembled together. Report every phase and neutral size and any utility codeword. A contractor's unused reel and agency-owned utility material require different ownership documentation; a job-site location alone does not establish title.

Flexible cable and bare grounding need separate descriptions

Two-aught and four-aught are familiar sizes in welding and DLO cable. Welding cable commonly uses fine bare copper and an elastomeric covering. DLO often uses tinned copper, EPR insulation and a CPE jacket, with its own voltage and additional listings.

A silver appearance on DLO strands can be tin coating rather than aluminum. Keep the label or specification with the cable. Do not assume flexible cable is general building feeder wire because the printed voltage seems suitable.

Bare copper grounding stock also appears in 2/0 through 4/0, often in coils or reels. Tell us whether it is new unused stock, installed material or short cut ends. Oxidation, contamination and missing traceability can change the evaluation without changing the marked size.

Shielded MV changes what the size tells us

Aught conductors also occur inside medium-voltage cable. The insulation wall, metallic shield and outer jacket make the complete cable very different from ordinary low-voltage wire. Voltage class and insulation level remain essential even when the conductor size is known.

Starting sizes vary by voltage and manufacturer. Representative 35 kV shielded constructions can begin around 1/0, while lower-voltage MV products may use smaller numbered gauges. It would be inaccurate to describe all MV cable as starting at 1/0.

End seals and storage history matter especially for these reels. Photograph both accessible ends and any damaged caps. Do not describe an apparently clean jacket as proof that moisture-sensitive cable is internally sound or fit for installation.

Copper content, reel weight and pickup access

Southwire's THHN engineering table lists about 653 lb of copper per 1000 ft for its 4/0 product. That is conductor copper, before insulation and the reel. Gross shipping weight is a different figure.

Original packages can include 500 ft or 1000 ft reels and longer master put-ups. Welding stock also appears in shorter packages, while MV lengths depend on the project and reel design. No standard aught-size footage can be inferred from a partly full reel.

We pick up within California, with access and loading arrangements discussed for the actual lot. Send flange diameter, overall width and any known gross weight. Damaged flanges or a returnable steel reel may affect the handling plan independently of cable value.

Aught-specific evidence for a written offer

A useful submission makes each reel's type and length clear without disturbing its winding or end protection.

• Show the slash and zero in each 1/0 through 4/0 marking.
• Capture CU, AL, compact or tinned-copper identification.
• Photograph complete SER/SEU or URD conductor-size strings.
• Include welding, DLO and additional RHH/RHW-2 markings when present.
• Record MV voltage, insulation level, shield type and end-cap condition.
• Identify continuous unused remnants separately from pulled cable and scrap cuts.
• Provide tag footage, endpoint marks and whether the material was rewound.
• Show reel damage, dimensions and loading access at the California location.

Preserve original ownership records with the inventory. Covered scrap copper transactions require California seller records and applicable payment terms; this statement is a summary, not legal advice. Our written offer and payment arrangements are confirmed before pickup rather than inferred from reel weight alone.