TC and TC-ER multi-conductor cable
Tray cable buyers in New York
Tray cable is what a plant runs when it wants to stop pulling conduit. Conductor count, voltage class and shielding decide what a reel is worth, and the ER rating decides who can use it.
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Send the construction, size and footage. Photographs can follow.
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Tray cable is a factory assembly of two or more insulated conductors under a jacket, listed to UL 1277 and covered by NEC Article 336. It runs from 600 V to 2 kV, from 14 AWG to 1000 kcmil, with two to several dozen conductors. TC-ER adds the exposed-run rating. Value is driven by conductor count and size, voltage class, shielding and jacket type, then by length and water damage.
What separates tray cable from a bundle of wire
Tray cable is a listed assembly, not a group of conductors pulled together on site. The conductors are laid up with fillers, wrapped and jacketed in a single operation, and the resulting cable carries a UL 1277 listing that permits it to be installed in cable tray without a raceway. That listing is the product. It is what allows a plant to run a multi-conductor cable across a hundred feet of tray, drop it down a column and land it in a junction box without installing conduit for any of it.
The construction also explains the failure modes. Fillers are there to keep the assembly round, and they are also the path water takes through the cable if the jacket is breached. The jacket is the only mechanical protection, so a nick from a tray edge or a crush from a reel that was dropped is more serious than the same damage on armoured cable. And because the conductors are close together for their whole length, a cable with damaged insulation usually fails at a specific point rather than gradually.
Conductor count, voltage class and shielding
Three things move the price before length is even discussed. The first is conductor count and size together: 12 AWG 3/C is a commodity, 12 AWG 12/C is a different asset, and 1/0 4/C is a heavy feeder that happens to be in tray form. The second is voltage class. A 600 V cable and a 2 kV cable can look almost identical from the outside, and the 2 kV version serves a smaller market at a higher price.
The third is shielding, which is where tray cable becomes a specialist item. An overall aluminum foil with a drain wire is standard for variable-frequency drive cable and for anything in an electrically noisy plant. Braid shields cost more and handle flexing better. Individually shielded pairs are instrumentation constructions and are priced on pair count rather than conductor count. A reel with a shield is worth more than the same copper unshielded, provided the shield is intact and the drain wire is still attached.
| Construction | Typical New York use | What drives the price |
|---|---|---|
| 14 AWG 3/C TC | Control and signal runs | Copper weight, remaining length |
| 12 AWG 4/C TC | Small motor and control drops | Volume, jacket condition |
| 10 AWG 7/C TC | Multi-function equipment connections | Conductor count |
| 8 AWG 4/C TC-ER | Exposed runs to packaged equipment | ER rating and gauge |
| 1/0 4/C TC | Feeder to a machine or panel | Size, footage, reel quality |
| 500 kcmil 3/C TC | Heavy industrial feeder | Copper or aluminum, footage |
| Shielded VFD cable | Drive to motor connections | Shield integrity and pair count |
| 2 kV TC | Higher-voltage plant distribution | Voltage class, small buyer pool |
Water, fillers and the jacket
Tray cable that has been stored outdoors with the ends open is a different product from the same cable stored indoors. The fillers act as a wick, and water travels a surprising distance into a reel along them. Once the interior is wet, the cable may still test sound but it cannot be sold as new stock, and a buyer who has been caught once will ask about storage before asking about price.
Jacket condition is the second question. PVC jackets harden and crack under UV, CPE holds up better, and low-smoke zero-halogen jackets are softer and mark easily but are required in tunnels and some occupied spaces. A cable that has been dragged out of a tray and coiled on a plant floor will have abrasion on one side along its whole length, and that abrasion is where a fault will eventually start. Reels stored on edge, off the ground and under cover are worth materially more than the same cable in a heap.
- The reel tag, showing voltage class, conductor count, size and footage
- The jacket print, which repeats the same information
- A cut end showing conductor count, color code and any shield
- The shield and drain wire, photographed where the jacket is stripped back
- The jacket surface, showing abrasion, UV cracking or crush marks
Specification
What a buyer needs to know about this cable
Every row below changes what a lot is worth. If the reel tag is gone, the jacket print and a cut end usually answer most of it.
Missing detail is not a problem — say what is missing and the review works from photographs.
| Standard | UL 1277; NEC Article 336 |
|---|---|
| Voltage classes | 600 V, 1 kV and 2 kV |
| Size range | 14 AWG through 1000 kcmil |
| Conductor count | Two conductors up to several dozen; 3, 4, 7 and 12 are the common plant configurations |
| Conductors | Copper, normally stranded; Class B stranding in the larger sizes |
| Shielding | Unshielded, overall foil with a drain wire, braid, or individually shielded pairs |
| Jackets | PVC, chlorinated polyethylene (CPE), or a low-smoke zero-halogen compound |
| Exposed-run rating | TC-ER, which permits an exposed run between a tray and equipment without conduit |
Constructions
Tray cable lots we review
Plant surplus is usually well documented and badly stored, which makes the photographs more useful than the paperwork.
Tagged TC-ER reels
Whole or part reels with the ER rating printed and the tag intact. The most saleable category, because the exposed-run rating widens the buyer pool.
Shielded drive cable
VFD cable with an overall foil or braid shield. Priced on shield construction, conductor count and length, and in demand wherever drives are being replaced.
Multi-conductor control cable
7/C, 12/C and 19/C constructions in 14 and 12 AWG. Value is in the conductor count, so a count at the cut end is the key photograph.
Large feeder TC
1/0 to 500 kcmil in 3/C and 4/C. Heavy, often aluminum, and worth a proper review when the footage is known.
Weathered or water-damaged reels
Jacket cracked, ends open, fillers wet. Recovery material, and worth handling only alongside other cable.
New York
Tray cable in the New York market
Tray cable is an industrial and institutional product, and New York's industrial map explains where it comes from. Chemical and paper plants along the Niagara and upper Hudson corridors, food and dairy processing in the Finger Lakes and Central New York, water and wastewater treatment everywhere, and the semiconductor and laboratory construction in the Capital Region all run tray. When a line is rebuilt or a drive is replaced, the cable that comes out is tray cable.
The other source is new construction over-order. Tray cable is bought by the reel for a specific equipment package, and when the package changes the reel is left. Those reels are usually tagged, often shielded, and frequently still banded, which makes them the best thing in the family. The worst is the plant floor sweepings: short lengths cut at every junction box, jacket abraded, no identification.
What helps a New York lot move
- Voltage class, conductor count and size, as printed
- Whether it is TC or TC-ER, and whether the print says so
- Shield construction, if there is one, and whether the drain wire is intact
- Footage, reel condition, and whether the ends were sealed
- Copper or aluminum conductors, and the jacket compound if it is marked
Seller questions
Questions sellers ask
What is the difference between TC and TC-ER?
TC-ER carries an exposed-run rating, which allows the cable to run outside a raceway between a tray and the equipment it serves. Plain TC is intended for tray, raceway or enclosed spaces. The ER rating is printed on the jacket and it materially widens the number of buyers who can use a reel.
How does conductor count affect the price?
Directly, because more conductors means more copper and a more specialised product. A 12 AWG 3/C cable is a commodity that many buyers can use; a 12 AWG 12/C cable serves a much narrower set of applications but carries far more copper per foot. Pricing has to account for both the metal and the market.
Can tray cable be direct buried?
Only where the cable itself carries a direct-burial marking, and most tray cable does not. Tray cable is designed for tray, raceway and, in the ER version, exposed runs. Burying an unmarked reel is a mistake that shows up as a failed inspection or a cable failure years later.
What does a shield add to the value?
A shield turns a general-purpose cable into a specific one. Foil-and-drain shielding is what drive and instrumentation applications require, so a shielded reel can serve a buyer who cannot use the unshielded version. The premium depends on the shield type, the pair count and whether the drain wire and foil are intact.
Why does water damage matter so much in tray cable?
Because the fillers wick water along the length of the cable, not just at the end. A reel stored with open ends in a wet yard can have moisture deep inside the assembly, which disqualifies it from being sold as new stock and often from reuse in a critical application. Sealed ends and indoor storage are the protection.
Keep reading
Related pages
- Control cable buyersThe lower-voltage multi-conductor cousin
- MC cable buyersArmoured multi-conductor cable for branch circuits
- VFD cable buyersShielded drive cable specifically
- XHHW wire buyersThe conductor insulation inside most tray cable
- Medium voltage cable buyersAbove 2 kV
- Plant liquidation cable buyersWhere most plant tray lots originate
Next step
Send the lot details
Include the storage city, how it is stored and what can reach it. If you have photographs of reel tags or jacket print, send them with the enquiry.
Send the lot
One desk reviews every lot that arrives.
Prefer to talk? 614-715-3047 · saleselectricalbuyers@gmail.com