Tray cable buyers for TC and TC-ER reels
Tray cable is what an industrial job uses when it wants conduit performance without conduit, and it is what gets left on the reel when the tray route changes for the third time.
- 600 V tray cable
- TC and TC-ER
- XLPE or EPR conductors
Tray cable is a factory assembly of insulated conductors under an overall jacket, listed to UL 1277 and intended for installation in cable trays, in raceway and, in the exposed-run versions, in free air between the tray and the equipment. It is 600 V in the ordinary product, with 90°C dry and 75°C wet ratings at the conductor depending on the insulation system used inside the jacket and the listing on the print.
The conductors are usually THHN/THWN, XHHW-2, or XLPE or EPR insulated singles, and the jacket is PVC, chlorinated polyethylene or a low-smoke zero-halogen compound where the specification demands it. Sizes run from 18 AWG control constructions up to 1000 kcmil power cables, and the two ends of that range are entirely different products that happen to share a standard and a jacket colour. Only the print on the jacket separates them at a glance.
TC-ER is the version worth understanding. The ER suffix means exposed run: the cable is rated to leave the tray and travel to the equipment without a raceway, subject to support requirements. It is the reason a plant can run one cable from a tray to a motor instead of tray, then conduit, then a flex. A reel marked TC-ER has more applications than one marked TC, and more value to the right buyer.
What we buy in this family
Condition and documentation decide the basis, not the family alone. These are the forms this material usually arrives in.
- TC-ER power and control constructions
- Multi-conductor reels from 16 AWG up
- XLPE, EPR and LSZH jacketed cable
- Sunlight-resistant and direct-burial marked
- Plant storehouse surplus with tags
The markings that decide a tray cable lot
Four markings carry the review: the type, the conductor size and count, the temperature, and any suffix. TC-ER is the suffix that adds applications. Sunlight-resistant and direct-burial markings appear on some constructions and not others, and both change where the cable can go. A reel marked TC only is a tray and raceway product, and a buyer knows that before asking anything.
The conductor count matters as much as the size, because tray cable is bought by circuit. A 4/C 12 AWG reel and a 12/C 16 AWG reel are not comparable even at the same copper weight. Where the jacket print is worn, the individual conductor print inside the jacket still gives the size, and opening a foot at the end settles it.
Jacket damage, water and the industrial storage problem
The jacket is the only thing between the assembly and a plant environment, so damage to it is the main condition issue. A jacket cut through to the conductor insulation means that length is compromised. A jacket scuffed but intact is cosmetic. The difference is visible at a glance, which is why a photograph of the cut end beats a photograph of the reel.
Water ingress is subtler. Tray cable stored outdoors with open ends can wick moisture along the interstices between conductors, and it shows as discolouration and corrosion at the far end rather than the near one. On a long reel that has stood on end in a yard, the bottom end is where to look. Cable stored in a plant storehouse rarely has this problem.
Plant surplus and the way tray cable is actually consumed
Tray cable is a project material. A plant buys several thousand feet of a specific construction for one installation, uses most of it, and keeps the remainder because the next project might need the same thing. That is why storehouse racks hold ten-year-old reels of a construction nobody specifies any more, still tagged and still sound.
Those obsolete constructions are their own market. An 18 AWG multi-conductor with a jacket compound no longer approved for the plant is still a usable control cable to somebody. The review has to say what it is rather than what it was bought for, and the reel tag usually carries both the original purchase and the length remaining.
Where this cable turns up in the two states
Charleston’s chemical and process plants are the classic source of tray cable in this region, because a process unit is wired in trays and the cable is bought in construction quantities. Columbia and the surrounding Midlands add manufacturing and food processing, where a tray run goes from a motor control centre to a line and the leftover reel returns to the storehouse rather than the supplier.
The other source is data and laboratory construction in the Triangle and Charlotte, where tray cable carries power and control above a ceiling or through a mechanical space. Those projects leave shorter remainders, often multi-conductor, and they are usually documented because the contractor’s close-out process demands it. That documentation is worth asking for before anybody loads a truck or writes a manifest.
Coverage
North and South Carolina
Every city page carries the local industrial base and access notes. Start from a state hub if you are not sure which one applies.
Tray cable (TC and TC-ER) questions
What does the ER in TC-ER actually allow?
It marks the cable as suitable for exposed runs, meaning it can leave the tray and run to equipment without being installed in a raceway, within the limits the code sets for support and protection. A reel marked TC without ER is limited to tray and raceway applications, and the price reflects it.
Can tray cable be buried directly?
Only where the cable is marked for direct burial. Many constructions are not, and the marking is printed on the jacket rather than assumed from the type. If a reel is going into a trench, the print has to say so, and a seller should photograph that section rather than describe the cable from memory or from an old spec sheet.
How do you review a multi-conductor reel with no footage mark?
By weight and by construction. Weight per foot varies with conductor count, size and jacket compound, so the estimate has to be done for that specific construction rather than by a general rule. We take the reel weight, the flange size and the print, then compare against published figures. The result is a range.
Is old tray cable from a plant storehouse worth anything?
Often yes, provided the jacket is sound and the construction can be identified. Obsolete jacket compounds and odd conductor counts still have users in maintenance and controls work. What reduces value is missing print, water in the assembly and jacket damage at the ends. Age alone is not the issue; condition and identification are.
Send tray cable (tc and tc-er) details
Construction, footage, condition and pickup city. Photographs can follow once a buyer has replied.
Or email saleselectricalbuyers@gmail.com
- No fee and no obligation to sell.
- Written lot terms before anything moves.
- Pickup scheduled around your access rules.