We buy surplus control and instrumentation cable from California facilities, contractors, and inventory managers. If you want to sell control cable, the manufacturer's part number is often the most useful detail you can send. Pair count, conductor size, shields, and actual ratings determine what the reel is—not the words 'industrial cable' alone.
Sell control cable with its exact specification
Control cable connects machine controls, relays, motor-control centers, and PLC inputs and outputs. It is an application family, not a single electrical listing. Products may carry TC/TC-ER, PLTC, ITC, MTW-based, or AWM identification according to their construction.
Typical control cable contains stranded bare or tinned copper conductors with PVC, PVC/nylon, or XLPE insulation. An overall PVC, CPE, or TPE jacket encloses the assembly. Foil with a drain wire or braid shielding may be included.
Common control sizes include 18, 16, 14, and 12 AWG, with a broader 18–10 AWG range in familiar industrial products. Counts can include 2, 3, 4, 7, 12, 19, 25, or more conductors. Small electronic-control products can use finer sizes, so preserve the actual label instead of assigning the nearest familiar gauge.
Our catalog of wire families helps separate these reels from power feeders and communication cable. AWM component recognition, in particular, is not blanket approval to use a product as building wire.
Conductor colors and numbers distinguish control inventory
Fourteen- and 12 AWG control cable may use colored insulation, tracers, or printed conductor numbers. Identification methods differ. A color-coded construction and an all-black numbered construction should not be merged into one inventory line without checking the specification.
The table shows the first six base colors in two ICEA Method 1 sequences. It is a product-identification reference, not a wiring instruction or a universal assignment of circuit functions.
| Conductor number | E1 base color | E2 base color |
|---|---|---|
| 1 | Black | Black |
| 2 | White | Red |
| 3 | Red | Blue |
| 4 | Green | Orange |
| 5 | Orange | Yellow |
| 6 | Blue | Brown |
Southwire's conductor-identification reference also describes numbered methods and tracer sequences. Record the method on the product sheet rather than inferring the entire construction from one exposed color. White, green, and green/yellow identification have code-governed uses; this table does not authorize a different use.
PLTC and ITC instrumentation: count pairs and triads
PLTC means power-limited tray cable; ITC means instrumentation tray cable. Instrumentation products often carry low-level analog or digital signals in twisted pairs or triads. Bare or tinned copper conductors, individual shields, overall shields, and drain wires are common construction features.
Representative sizes span 22–16 AWG, particularly 20, 18, and 16 AWG. Many products are 300V, while some 600V instrument constructions instead carry a TC listing. Control products more broadly commonly carry 300V or 600V ratings, with other variants available.
A pair has two circuit conductors; a triad has three. The number of pairs or triads is therefore different from the total conductor count. Photograph the notation in full and identify whether shielding is individual, overall, or both.
A drain wire is not automatically an equipment grounding conductor, and a shield is not a power neutral. These components must not be counted as additional full-size control cores. If the label says TC, our tray-cable buying page explains the overlapping assembly category.
Thermocouple wire is an alloy-specific category
Thermocouple wire uses dissimilar conductor metals for temperature measurement. Extension or compensating grades must match the specified system and temperature range. J, K, T, and E are different types, not alternate names for the same copper cable.
| Type and common extension mark | Conductor combination | Inventory detail to retain |
|---|---|---|
| J / JX | Iron–constantan | Type and extension grade |
| K / KX | Chromel–alumel | Alloy and product number |
| T / TX | Copper–constantan | Do not count both legs as pure copper |
| E / EX | Chromel–constantan | Exact type and temperature specification |
Belden's thermocouple reference identifies these combinations and distinguishes thermocouple from extension wire. Jacket color alone is not enough because the color-code system must also be known.
Common surplus examples use 20 or 16 AWG, often solid, though other sizes and stranded versions exist. PVC and higher-temperature FEP constructions are different products. Keep the actual temperature rating and any PLTC/ITC listing; a heat-resistant material name does not establish every cable rating.
Where California control-cable surplus originates
Process plants, water and wastewater facilities, food processors, and pharmaceutical or biotech operations use multiple control and instrument families. Equipment changes, capital-project leftovers, maintenance spares, and storeroom cleanouts can leave reels without an immediate internal use. Tell us which condition describes the stock offered.
For plant and facility cable surplus, an inventory export can help connect internal stock numbers to manufacturer part numbers. Preserve that cross-reference when a plant label covers the original reel tag. A custom instrument construction may need an exact buyer match rather than a general small-wire description.
Manufacturing and technical facilities are also relevant to Orange County wire sellers. Motor projects may leave both control cable and VFD output cable, but the two are not interchangeable. List drive cable by its own phase, ground, insulation, and shielding specification.
Reusable length and readable records shape value
Control products commonly arrive on 100-, 500-, or 1000-foot spools and reels. Instrumentation cable often uses 500- or 1000-foot packages and long multi-pair factory reels. Thermocouple put-ups can include 100, 500, and 1000 feet; verify each SKU rather than assuming a standard package.
We consider continuous length, original labels, shield condition, jacket damage, and whether the cable was installed. Several unconnected cuts are not equivalent to a single long instrument run. The small conductor size of some products makes manufacturing and exact-match inventory value especially important.
Used copper control cable may instead be assessed for scrap, while thermocouple alloy material requires separate identification. Insulation, shielding, and packaging prevent gross weight from being a pure-copper measurement. We follow applicable California transaction rules and confirm offers, payment method, and payment timing in writing before collection.
What to send for a control or instrument-cable offer
Put each distinct part number on its own line and include:
- Manufacturer and full part number, plus the internal stock-number cross-reference if one exists.
- Photos of TC-ER, PLTC, ITC, AWM style, voltage, temperature, and other actual legend entries.
- Conductor AWG and total core count, or the number of pairs or triads as appropriate.
- Individual and overall shielding details, drain-wire construction, and any braid specification.
- Color-code method, tracer pattern, or printed conductor-number identification from the product records.
- Thermocouple type or extension mark, alloy pair, insulation material, and temperature rating for that group.
- Continuous footage per spool, including separate cuts, rewinding, visible damage, and prior service history.
- Original tags, California storage city, ownership authorization, package quantities, and access for loading.
Retain the original spool labels even when a plant inventory sticker supplies a shorter description. We collect control cable from plants and job sites anywhere within California. No offer establishes fitness for an instrument loop or installation; the buyer and end user must verify the required specifications.
Common questions
Is twelve-pair cable the same as twelve-conductor cable?
No. A pair contains two signal conductors, while a triad contains three. Twelve pairs therefore describe a different arrangement from twelve individual conductors. Shields and drain wires also need separate identification. Send the complete manufacturer notation and part number so we can distinguish circuit conductors, pair groups, individual shields, and an overall shield without guessing from an abbreviated inventory line.
Can overall-shielded cable replace individually shielded pairs?
We do not treat them as interchangeable inventory. An overall shield surrounds the cable's grouped contents; individual shields surround the specified pairs or triads. Some constructions include both. Exact shield layout can determine whether surplus matches a buyer's requirement. Photograph an existing cable end and include the manufacturer's construction description, rather than summarizing both products only as shielded instrument cable.
Why is Type K thermocouple cable not valued like copper control wire?
Its signal conductors use specified alloys rather than ordinary copper throughout. Type K or KX commonly uses chromel and alumel; other thermocouple types have different metal combinations. Product value depends on matching type, extension grade, temperature rating, and construction. We identify those first and do not multiply the entire conductor weight by a copper scrap assumption.